The summer of 1983 was like no other in Joliet, Ill., a hard-working, rough-and-tough blue-collar industrial city an hour’s drive southwest of Chicago. During one of the hottest summers on record, the citizens of Joliet, were terrorized by an elusive serial-killing madman.

In the early morning of March 6, 1993, an intense fire broke out in a tiny nursery. Sixteen minutes later, firefighters had extinguished the blaze, only to reveal a room burned so severely, everything was virtually unrecognizable. Then, they were told to look for a baby. What they discovered looked more like a monster from a horror film; the small skull had been incinerated, and the legs and arms were nothing more than charred stumps. The only identifiable human feature was the baby's genitals, covered in what remained of his diaper.

At first, the residents of Kauai Beach Resort took little notice of their new neighbors. The glamorous blonde and her tall husband fit the image of the ritzy gated community. The couple seemed to keep to themselves - until the police knocked on their door with a search warrant. Lori Vallow and Chad Daybell had fled to Hawaii in the midst of being investigated for the disappearance of Lori's children back in Idaho - Tylee and JJ - who hadn't been seen alive in five months.

Seven Bones is the story of one of the more bizarre murder investigations in Australia’s history. Two wives die in suspicious circumstances: co-incidence or, as husband Thomas Keir describes it, ‘bad luck’? Three years after Thomas Keir alleged his first wife, Jean, deserted him and her young son for another man, his second wife, Rosalina, Jean’s cousin, lay scorched and strangled on her bed. Arriving on the scene, Detective Peter Seymour realised he was either dealing with the world’s unluckiest husband or a serial wife killer.

John Edward Robinson was a 56-year-old grandfather from rural Kansas. An entrepreneur and Eagle Scout, he was even honored as "Man of the Year" at a Kansas City charity. To some of the women he met on the internet, he was known as Slavemaster - a sexual deviate with a taste for sadomasochistic rituals of extreme domination and torture...even killing. 

After his December 2003 arrest, registered nurse Charlie Cullen was quickly dubbed "The Angel of Death" by the media. But Cullen was no mercy killer, nor was he a simple monster. He was a favorite son, husband, beloved father, best friend, and celebrated caregiver. Implicated in the deaths of as many as 300 patients, he was also perhaps the most prolific serial killer in American history.

All Diane Bertalan really knew of her new husband, John, was that he was a widower, he lavished her with gifts, and he preferred to keep his past a secret. What she didn't know was that the FBI had been watching him for years. In the fall of 2000, she found out why - it was a crime that had been haunting authorities for decades. They called it the mystery of the Lady in the Box.

Investigators and Central Florida residents were horrified when 16-year-old vampire cult leader Rod Ferrell was arrested and charged with bludgeoning a cult member's parents. When they realized the slain couple's 15-year-old daughter was missing, they feared she was a victim, too. Detectives and journalists swarming over three states soon uncovered a web of blood-drinking occult rituals, illicit sex, wildly dysfunctional families, and spiritual warfare. 

In the winter of 1913, high in the Canadian Arctic, two Catholic priests set out on a dangerous mission to do what no white men had ever attempted: Reach a group of utterly isolated Eskimos and convert them. Farther and farther north the priests trudged, through a frigid and bleak country known as the Barren Lands, until they reached the place where the Coppermine River dumps into the Arctic Ocean.

At a time when Edwardian Britain seemed a golden place, basking in its imperial glory, Dr Hawley Harvey Crippen and his wife, Belle, lived among the suburban villas of North London, renting a house at 39 Hilldrop Crescent. After supper on 31st January 1910, their friends went home and Crippen killed Belle with poison, dismembered her body and buried some of her remains beneath the brick floor of the coal cellar. Crippen never admitted killing his wife and took the secrets of the crime with him when he was hanged, following his conviction for murder.

While out checking their lobster traps, two Landry cousins and skipper Dwayne Samson saw Boudreau in his boat, the Midnight Slider, about to vandalize their lobster traps. Like so many times before, the small-time criminal was about to cost them thousands of dollars out of their seasonal livelihood. Boudreau seemed invincible, a miscreant who would plague the village forever. Meanwhile, the police and local officials were frustrated, cowed, and hobbled by shrinking budgets. One of the men took out a rifle and fired four shots at Boudreau and his boat.

Sixteen-year-old Patricia Columbo began working for pharmacist Frank DeLuca, a married father of five, in the 1970s, and the two soon entered into a sexual relationship. Against her father's wishes, Patricia and Frank moved in together. Then, in Elk Grove Village, Illinois, Patricia's father was brutally murdered, along with her mother and 13-year-old brother. Police were suspicious of Patricia's strange behavior after the bodies were discovered, and following their investigation, they arrested both Patricia and Frank. 

In the early morning hours of August 29, 1986, Clarkson University sophomore Katy Hawelka - bright, pretty, and full of life - strolled back to her upstate New York campus after a night out. On the dimly lit path beside the university's ice hockey arena, a stranger emerged from the darkness. A Stranger Killed Katy is the true story of a life cut tragically short, and of the fight by a grieving mother and others more than 30 years later to ensure that a killer would spend the rest of his life behind bars.

Ben Field was good looking and charming, and as a passionate English literature student, knew the power of words to seduce. In the village of Maids Moreton in Buckinghamshire, 69-year-old Peter Farquhar, an eminent teacher and author, found Ben’s presence irresistible. They set up home together, underwent a ‘betrothal’ ceremony at a church, but all along Ben was gaslighting his partner and secretly poisoning him. A year later Peter was dead.  

Lurking beneath the progressive activism and sex positivity in the 1970 to '80s, a dark undercurrent of violence rippled across the American landscape. With reported cases of sexual assault and homicide on the rise, the FBI created a specialized team - the “Mindhunters”, better known as the Behavioral Science Unit - to track down the country's most dangerous criminals. And yet narrowing down a seemingly infinite list of potential suspects seemed daunting at best and impossible at worst - until Dr. Ann Wolbert Burgess stepped on the scene.