It’s been almost two years since Effie’s beloved parents got divorced, destroying the image of the happy, loving childhood she thought she had. Since then, she’s become estranged from her father and embarked on a feud with his hot (and much younger) girlfriend, Krista. And now, more earth-shattering news: They’ve sold Greenoaks, the rambling Victorian country house Effie has always called home.

Ava thinks love should be found in the real world, not on apps that filter men by height, job, or astrological sign. She believes in feelings, not algorithms. So after a recent breakup and dating app debacle, she decides to put love on hold and escapes to a remote writers' retreat in coastal Italy. At the retreat, she's not allowed to use her real name or reveal any personal information. When the neighboring martial arts retreat is canceled and a few of its attendees join their small writing community, Ava, now going by "Aria", meets "Dutch", a man who seems too good to be true.

Lottie just knows that her boyfriend is going to propose during lunch at one of London’s fanciest restaurants. But when his big question involves a trip abroad, not a trip down the aisle, she’s completely crushed. So when Ben, an old flame, calls her out of the blue and reminds Lottie of their pact to get married if they were both still single at 30, she jumps at the chance. No formal dates - just a quick march to the altar and a honeymoon on Ikonos, the sun-drenched Greek island where they first met years ago. Their family and friends are horrified. Fliss, Lottie’s older sister, knows that Lottie can be impulsive - but surely this is her worst decision yet.

Everywhere Katie Brenner looks, someone else is living the life she longs for, particularly her boss, Demeter Farlowe. Demeter is brilliant and creative, lives with her perfect family in a posh townhouse, and wears the coolest clothes. Katie's life, meanwhile, is a daily struggle - from her dismal rental to her oddball flatmates to the tense office politics she's trying to negotiate. No wonder Katie takes refuge in not-quite-true Instagram posts, especially as she's desperate to make her dad proud.

Fixie Farr has always lived by her father’s motto: “Family first”. And since her dad passed away, leaving his charming housewares store in the hands of his wife and children, Fixie spends all her time picking up the slack from her siblings instead of striking out on her own. When a handsome stranger in a coffee shop asks her to watch his laptop for a moment, she not only agrees - she ends up saving it from certain disaster. To thank Fixie for her quick thinking, the computer’s owner, an investment manager, scribbles an IOU on a coffee sleeve and attaches his business card.