Can you ever outrun the past? It's Zoe's wedding day. She's about to marry Jamie, the love of her life. Then a phone call comes out of the blue, with the news that her mum, Gina, has been arrested. Zoe must make an impossible decision: should she leave her own wedding to help? Zoe hasn't seen Gina for years, blaming her for the secret that she's been running from ever since she was 16. Now Gina is back in her life, but she's very different to the mum Zoe remembers.

On the day Hannah is finally going to tell her husband she's leaving him, he has a stroke...and life changes in an instant. Tom's only 32. Now he can't walk or cut up his own food, let alone use his phone or take her in his arms. And Hannah's trapped. She knows she has to care for her husband, the very same man she was ready to walk away from. But with the time and fresh perspective he's been given, Tom reevaluates his life and becomes determined to save his marriage.

Elle has the perfect life. A hard-working husband, a clever little boy, and a gorgeous home in a quaint neighbourhood. Jen also has the perfect life. A passionate relationship with a doting husband, a creative little girl, and an exciting career. When a strange coincidence throws them together, they become close friends. But then they uncover a shocking truth: they share the same husband.

A few months ago, Effie Abbott was left heartbroken; now she has everything she ever wanted. After a whirlwind romance and a dream wedding, she's starting a new life with a new man. Oliver is caring, sophisticated and trustworthy - everything Smith, her reckless ex, wasn't.

Colm O’Flynn was loved by his close circle of family and friends, however his death came too soon for everyone to make peace with their past. Shauna, his second wife, adored him. But one night she broke their marriage vows and didn’t get time to ask Colm’s forgiveness. Jess was the first Mrs O’Flynn. Her heart is set on someone new, but will the last one-night stand she shared with Colm come back to haunt her? Colm’s best friend, Dan, is recently divorced. Can he take a second shot at happiness if it means betraying the one person who always had his back?

Young and desperately in love, Merrin had the whole world ahead of her. But just as her new life was about to start, the ground beneath her feet was cruelly swept away. Devastated by the humiliation, she ran far away from the beloved fishing village she had always called home to lick her wounds and escape her gossiping friends and neighbors. It hasn’t been easy, but six years later Merrin has forged a new life for herself far from the sea, burying the impulsive girl she once was.

After escaping her controlling husband, Bernadette Manson is taking the first extravagant holiday of her new life. But when her best friend cancels, will she be strong enough to fly solo? Tadgh Donovan is about to jet off to his destination wedding when he sees a shocking text. Has his bride-to-be written her wedding vows… or already broken them? Hayley Ford is the wife of a top fertility specialist yet her battle to get pregnant has almost broken her marriage. Can a trip to the sun heal their relationship or should she brace for a crash landing?

For Tabitha, the day that changed everything started like any other. She woke up, leaving her husband, Andy, sleeping. Downstairs, she boiled the kettle and enjoyed a cup of tea as the sun rose. Upstairs, Andy’s alarm sounded and Tabitha took him a freshly brewed coffee, like every other morning. She called his name, she nudged his shoulder. But Andy wouldn’t wake up.

Our family of three is perfect. Just me, Noah and our teenage daughter Maya. The day the police knock at our door, telling us about the car accident, is the worst day of my life. My heart shatters, but what they say next almost makes it stop beating: Noah was in the car with another woman who died at the scene. Her two-year-old girl, Luna, miraculously survived. With Noah fighting for his life, I’m desperate for the truth, and when I search his desk, I find checks made out to Luna’s mother. Did my loving, loyal husband have a secret family all along?

Laurie is sure love at first sight doesn't exist anywhere but the movies. But then, through a misted-up bus window one snowy December day, she sees a man who she knows instantly is the one. Their eyes meet, there's a moment of pure magic...and then her bus drives away. Certain they're fated to find each other again, Laurie spends a year scanning every bus stop and cafe in London for him. But she doesn't find him, not when it matters anyway. Instead they "reunite" at a Christmas party, when her best friend, Sarah, giddily introduces her new boyfriend: the man from the bus.

Tress Walker waved her perfect husband Max off to work, with no idea that she was about to go into labour with their first child. And completely unaware that when she tried to track Max down, he wouldn’t be where he was supposed to be. At the same time, Max’s best friend Noah Clark said goodbye to his wife, Anya, blissfully oblivious that he would soon discover the woman he adored had been lying to him for years. And living alongside the two couples, their recently widowed friend, Nancy Jenkins, is getting ready to meet Eddie, her first true love at a school reunion.

When their last embryo is accidentally given to another woman, Quinn and James reminisce about the child they gave up 4 years prior... All Quinn has ever wanted is to be a mother. Although her husband James brings her comfort, the knowledge they have no embryos left, and that their child is out there being raised by another family, is tearing them both apart. When the clinic tells Quinn and James they have the right to spend time with little Emily, at first they hesitate. Of course, they would never want to come between Emily and her loving family.

Abigail Gibson is gone. The day after Christmas, she walks out of her home in the suburbs, leaving behind a strange note on the kitchen table...and her 10-year-old son, Sam. When her sister Gillian gets the call, she can barely believe it: Abigail has always been a little, well, unreliable, but she hasn’t done anything like this in a decade - not since Sam was born. Now, Gillian and her husband are taking care of Sam while they wait for news of Abigail.

Siobhan is a quick-tempered life coach with way too much on her plate. Miranda is a tree surgeon used to being treated as just one of the guys on the job. Jane is a soft-spoken volunteer for the local charity shop with zero sense of self-worth. These three women are strangers who have only one thing in common: They’ve all been stood up on the same day, the very worst day to be stood up—Valentine’s Day. And, unbeknownst to them, they’ve all been stood up by the same man.

After a night of fun back in 1992, Abby is responsible for a car crash that kills her beloved brother. It's a mistake she can never forgive, so she pushes away Liam, the man she loves most, knowing that he would eventually hate her for what she's done, the same way she hates herself. Twenty years later, Abby's husband, Nate, is also living with a deep sense of guilt. He was the driver who first came upon the scene of Abby's accident, the man who could not save her brother in time. It's this guilt, this regret, that binds them together. Then, Liam moves into the neighborhood....