Private Enquiry agent Cyrus Barker has just about seen it all—he's been attacked by assassins, his office has been bombed, and evil-doers have even nearly killed his dog. But never before has a potential client dropped dead in his office. When Roland Fitzhugh, Member of Parliament arrives to consult Barker and his partner Thomas Llewelyn, he falls to the floor, dead, upon entering. 

When the body of a young man is found stuffed into the tomb of a medieval knight, Parish Constable Daniel Haze is tasked with investigating his first solo murder case. Suspicion instantly falls on the only stranger to arrive in the village of Birch Hill just before the crime took place, but the American captain proves to be an unexpected asset. A former soldier and a skilled surgeon, Jason Redmond is not only willing to assist Haze with the investigation but will risk his own safety to apprehend the killer.

The options for the penniless daughter of a deceased earl are few indeed in Regency England. So, following the suspicious death of her father and the discovery that she and her much younger sister have been left without income or home, Lady Caroline takes a post as a lady's companion to the wealthy widow Frogerton. Just as Caroline is getting accustomed to her new position, her aunt, Lady Eleanor Greenwood, invites her and her employer to a house party in the countryside to celebrate her youngest daughter's birthday. But all is not well at the Greenwood estate.

Spring, 1918. The Great War is at a crucial stage, the Germans are making one last push into France, and the Allies are struggling to hold them back. Battle lines are shifting, and men, and their machines, are being sent up and down the front to shore up defenses. Major Heathcliff Lennox, and his batman Greggs, are told to report to their new HQ. They set off on a sunlit day to fly the distance, but the enemy is never far away, and disaster strikes. They're sent crashing to the ground behind enemy lines, where life, death, and love await.

The Earl of Wrexford possesses a brilliant scientific mind, but boredom and pride lead him to reckless behavior. He does not suffer fools gladly. So when pompous, pious Reverend Josiah Holworthy publicly condemns him for debauchery, Wrexford unsheathes his rapier-sharp wit and strikes back. As their war of words escalates, London's most popular satirical cartoonist, A. J. Quill, skewers them both.

Accused of treason and stripped of his knighthood, Crispin Guest has survived on the gritty streets of London by reinventing himself as The Tracker, an investigator for hire who can locate lost objects and uncover secrets. When the merchant Nicholas Walcote hires Guest to investigate his young wife Philippa for adultery, he discovers an underground world of danger and dirty dealings. Philippa is indeed hiding something—but she's not the only one. Walcote himself is rumored to possess a holy relic so powerful that some would even kill for it.

With her inquisitive mind, Charlotte Holmes has never felt comfortable with the demureness expected of the fairer sex in upper-class society. But even she never thought that she would become a social pariah, an outcast fending for herself on the mean streets of London. When the city is struck by a trio of unexpected deaths and suspicion falls on her sister and her father, Charlotte is desperate to find the true culprits and clear the family name.

Captain Sam Wyndham, former Scotland Yard detective, is a new arrival to Calcutta. Desperately seeking a fresh start after his experiences during the Great War, Wyndham has been recruited to head up a new post in the police force. He is immediately overwhelmed by the heady vibrancy of the tropical city, but with barely a moment to acclimatize or to deal with the ghosts that still haunt him, Wyndham is caught up in a murder investigation that threatens to destabilize a city already teetering on the brink of political insurgency.

Detective Inspector Ian Hamilton is no stranger to Edinburgh's darkest crimes. Scarred by the mysterious fire that killed his parents, he faces his toughest case yet when a young man is found strangled in Holyrood Park. With little evidence aside from a strange playing card found on the body, Hamilton engages the help of his aunt, a gifted photographer, and George Pearson, a librarian with a shared interest in the criminal mind.

In the winter of 1835, young Charles Dickens is a journalist on the rise at the Evening Chronicle. Invited to dinner at the estate of the newspaper's co-editor, Charles is smitten with his boss' daughter, vivacious 19-year-old Kate Hogarth. They are having the best of times when a scream shatters the pleasant evening. Charles, Kate, and her father rush to the neighbors' home, where Miss Christiana Lugoson lies unconscious on the floor. By morning, the poor young woman will be dead.  

It’s the autumn of 1890, and a spate of bombings has hit London. The newspapers are full of fevered speculation about anarchists, antimonarchists and Fenians. But one man suspects an even more sinister hand behind the violence. Sherlock Holmes believes Professor Moriarty is orchestrating a nationwide campaign of terror, but to what end? At the same time, a bizarrely garbed figure has been spotted on the rooftops and in the grimy back alleys of the capital.  

London, 1878. One April morning, a small boat bearing a young woman’s corpse floats down the murky waters of the Thames. When the victim is identified as Rose Albert, daughter of a prominent judge, the Scotland Yard director gives the case to Michael Corravan, one of the only senior inspectors remaining after a corruption scandal the previous autumn left the division in ruins. Reluctantly, Corravan abandons his ongoing case, a search for the missing wife of a shipping magnate, handing it over to his young colleague, Mr. Stiles. 

The picturesque village of Bunburry is about to be enhanced by the late Mrs Benson's mansion being transformed into a luxury hotel. But when the project is sabotaged, who is responsible? Careless workers, a disgruntled rival, a vengeful ex-husband, Mrs Benson's criminal nephew, or Mrs Benson's troubled ghost? After damage comes death, and it's up to amateur sleuth Alfie McAlister, his friends Liz and Marge, and police constable Emma Hollis to uncover the truth.

Before Jack the Ripper terrorised London, Police Inspector Samuel Ravenscroft patrolled the streets of Whitechapel. Clever and hard-working, Ravenscroft nonetheless has the worst record in the force. He lets a murderer escape during a chase and is banished to the spa town of Malvern for a water treatment to cure his asthma. Ravenscroft accepts a dinner invitation from a new acquaintance, Jabez Pitzer. Before dinner, the maid finds Pitzer slumped over his desk - dead. Ravenscroft immediately recognises the signs - Pitzer has been poisoned.

Hugh of Singleton, fourth son of a minor knight, has been educated as a clerk, usually a prelude to taking holy orders. However, feeling no certain calling despite a lively faith, he turns to the profession of surgeon, training in Paris and then hanging out his sign in Oxford. A local lord asks him to track the killer of a young woman whose bones have been found in the castle cesspit. She is identified as the impetuous missing daughter of a local blacksmith, and her young man, whom she had provoked very publicly, is in due course arrested and sentenced at the Oxford assizes.

After her father dies, March Middleton has to move to London to live with her guardian, Sidney Grice, the country's most famous private detective. It is 1882, and London is at its murkiest yet most vibrant, wealthiest yet most poverty-stricken. No sooner does March arrive than a case presents itself: A young woman has been brutally murdered, and her husband is the only suspect.

Stephen Doyle, an Irish American veteran of the Civil War, arrives in Manchester from New York with a thirst for blood. He has joined the Fenians, a secret society intent on ending British rule in Ireland by any means necessary. Head Constable James O'Connor has fled grief and drink in Dublin for a sober start in Manchester. His job is to discover and thwart the Fenians' plans, whatever they might be.

As plain-clothes men go, Dangerous Davies looks like a non-starter. The small fry of petty larceny and minor disturbances in the backwaters of north-west London are his daily round. His philosophising Welsh drinking companion Mod, his outsized and unruly dog Kitty, his quarrels with his landlady Mrs Fulljames - none of these bodes well for the efficient solving of crimes and the outwitting of villainy. But Davies is encouraged by his beautiful friend, Jemma, and every so often he stumbles upon something really big.

London, 1878. One April morning, a small boat bearing a young woman’s corpse floats down the murky waters of the Thames. When the victim is identified as Rose Albert, daughter of a prominent judge, the Scotland Yard director gives the case to Michael Corravan, one of the only senior inspectors remaining after a corruption scandal the previous autumn left the division in ruins. Reluctantly, Corravan abandons his ongoing case, a search for the missing wife of a shipping magnate, handing it over to his young colleague, Mr. Stiles. 

Detective Inspector Ian Hamilton is no stranger to Edinburgh's darkest crimes. Scarred by the mysterious fire that killed his parents, he faces his toughest case yet when a young man is found strangled in Holyrood Park. With little evidence aside from a strange playing card found on the body, Hamilton engages the help of his aunt, a gifted photographer, and George Pearson, a librarian with a shared interest in the criminal mind.

Three seemingly separate crimes, three detectives. A mysterious stalker is on the loose in London known only as the Goblin Man and his sights are set on a wealthy businessman, David Daniels. A horrific explosion rips through Whitechapel Underground Station and the prime suspect is a Jewish anarchist. And a Mrs. Clara Edwards is searching for her missing lover, Philias Jackson. What connects these three?

The foggy streets of London's Whitechapel district have become a nocturnal hunting ground for Jack the Ripper, and no woman is safe. Flower girl Constance Piper is not immune to dread, but she is more preoccupied with her own strange experiences of late. Clairvoyants seem to be everywhere these days. In desperation, even Scotland Yard has turned to them to help apprehend the Ripper.

London, June 1860: When an assassination attempt is made on Queen Victoria, and a petty thief is gruesomely murdered moments later - and only a block away - Chief Detective Inspector Charles Field quickly surmises that these crimes are connected to an even more sinister plot. Was Victoria really the assassin's target? Are those closest to the Crown hiding something? Soon, Field's investigation exposes a shocking conspiracy in which the publication of Charles Darwin's On the Origin of Species sets off a string of murders, arson, kidnapping, and the pursuit of a diabolical madman.

Narrated by acclaimed British actor Edward Petherbridge, The Last Moriarty is set in London, 1895. On a cold November morning, a young American actress visits 221B Baker Street, desperate for Sherlock Holmes to protect her from the threats of a mysterious, menacing man who has recently appeared in her life. Holmes agrees to help, even though he has just promised the Prime Minister to solve the murder of John D. Rockefeller's security agent before the incident can derail an upcoming British-American summit.

1940, Jersey. When Nazi forces occupy Jersey in the English Channel Islands, Céline Huber, who is married to a German, must decide where her loyalty lies. Love for her island and fear for her Jewish friend Rachel soon propel her into a dangerous double life. Meanwhile, Céline’s husband Fred is conscripted into the Wehrmacht in occupied France. Horrified by Nazi acts of atrocity and torture, he soon becomes a double agent for the French Resistance.

Singapore, 1910 - Desperate for a fresh start, Harriet Gordon finds herself living with her brother, a reverend and headmaster of a school for boys, in Singapore at the height of colonial rule. Hoping to gain some financial independence, she advertises her services as a personal secretary. It is unfortunate that she should discover her first client, Sir Oswald Newbold - explorer, mine magnate, and president of the exclusive Explorers and Geographers Club - dead with a knife in his throat.

Glasgow, 1932. When the son-in-law of one of the city’s wealthiest shipbuilders is found floating in the River Clyde with his throat cut, it falls to Inspector Jimmy Dreghorn to lead the murder case - despite sharing a troubled history with the victim’s widow, Isla Lockhart. From the flying fists and flashing blades of Glasgow’s gangland underworld, to the backstabbing upper echelons of government and big business, Dreghorn and his partner ‘Bonnie’ Archie McDaid will have to dig deep into Glasgow society to find out who wanted the man dead and why.