Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

For Emily Rossi, life may not be perfect, but it's pretty close. She has a great career, a house in the country, a solid marriage to Eric and two wonderful children - tennis superstar Daniel and quiet, sensitive Zara. But when her fourteen-year-old daughter brings home a toxic new best friend, Emily’s seemingly perfect family starts to spiral out of control.

Psychologist Margot Scott has a picture-perfect life: a nice house in the suburbs, a husband, two children and a successful career. On a warm spring morning Margot approaches one of her clients on a busy train platform. He is looking down at his phone, with his duffel bag in hand as the train approaches. That’s when she slams into his back and he falls in front of the train. Margot’s clients all lie to her, but one lie cost her family and freedom.

Eve Harding's world implodes one Sunday morning when she is violently assaulted and raped walking to a South London train station. As her attacker evades the police and is left to roam the streets to stalk his next victim, Eve is forced to seek out her assailant before he strikes again. With vengeance in mind, Eve is determined to find him in time and deliver justice on her own terms. In a game of cat and mouse, who is stalking who?

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.

Gemma Robinson comes into Elliot’s life like a whirlwind, and they marry and settle into his home. When she asks him if her parents can come to stay for a couple of weeks, he is keen to oblige - he just doesn’t quite know what he’s signing up for. The Robinsons arrive with Gemma’s sister, Chloe, a mysterious young woman who refuses to speak or leave her room.

Genna Collins works a dead end job, loves her family, her girlfriend, and her friends. When she wins the biggest Euromillions jackpot on record everything changes . . . and not always for the best. When Abi Kitson fell in love she always knew it would go unrequited. The woman of her dreams was so close yet seemingly untouchable for so many reasons. Reasons like—they are best friends, or the big age gap, or the 'other' woman, nevermind Abi's own baggage.

When Andrew Sumner meets beautiful, edgy Charlie, he is certain his run of bad luck has finally come to an end. But as the two of them embark on an intense affair, Andrew wonders if his grasp on reality is slipping. Items go missing in his apartment. Somebody appears to be following him. And as misfortune and tragedy strike his friends and loved ones, Andrew is forced to confront the frightening truth.…

Roz is young, penniless and pregnant. All she wants is to be the perfect mother to her child, but the more she thinks about her own chaotic upbringing, the more certain she is that the best life for her baby is as far away as possible from her hometown in Ireland. Determined to do the right thing, Roz joins an elite adoption service and can’t believe her luck. Within days she is jetting to New York to meet a celebrity power couple desperate for a child of their own.

It’s fair to say that Maddie’s life in London is far from rewarding. With a mother who spends most of her time in Ghana (yet still somehow manages to be overbearing), Maddie is the primary caretaker for her father, who suffers from advanced stage Parkinson’s. At work, her boss is a nightmare and Maddie is tired of always being the only Black person in every meeting.

Fresh out of prison, Jess Strickland has just six months’ probation to serve until she's free to get on with the life she left behind four years ago. With few options available, Jess takes a job at Bright’s, an industrial laundry company, alongside other ex-cons, all eager to keep their noses clean. Here she finds an ally in Karla, but soon learns her new boss, Terry, is not all he seems. Realising she’s no safer on the outside, Jess refuses to be a victim any longer. How far will she go to avoid going back to prison?

"There’s someone I want you to meet," Belle says, as a man draws up to her side. He’s tall with dark hair and stubble on his square jaw. He’s not exactly smiling, but the corner of his mouth curls upwards as he slides his hand around my daughter’s waist.

This is not the happy family you think. The fire crackles, my son smiles, the man jokes whilst I pour drinks. But my husband has disappeared. The man is a stranger. My skin crawls every time he brushes my hand. He says if I don’t play along, he has photos that will destroy my family. What happened the night before my husband disappeared - the night I don’t remember?

In 1997 teenager Sophie White and her three girlfriends decide they want to lose their virginity before summer is over. Roping in her childhood buddy Gareth and his mates, Sophie holds a party to get the deed over and done with, but the night doesn’t end as planned. Twenty years later, the group are brought back together when Gareth is killed in a car accident and Sophie begins receiving threatening messages. It seems the party wasn’t as innocent as everyone thought, and now someone wants payback.

Newlyweds Lina and Cain don’t make it out to their property on gorgeous Lake Tarawera as often as they’d like, so when Cain suggests they rent the house out to vacationers, Lina reluctantly agrees. While the home has been in her family for generations, they could use the extra money. And at first, Lina is amazed at how quickly guests line up, and at how much they’re willing to pay. But both Lina and Cain have been keeping secrets, secrets that won’t be put off by fresh paint or a new alarm system. And someone has been watching them.