When Olivia moves to Port Townsend, her marriage is floundering, and her life is in pieces. She doesn’t know if things with her husband Mark are truly over, or quite why the phone call she longs for on her daughter’s birthday will never come. Joining a letter-writing club seems like a harmless decision. But when she meets Ned, an ex-soldier badly wounded in Afghanistan, this unlooked-for friendship revives unexpected emotions and memories she’d rather forget. 

The chaotic but happy equilibrium of the Nightingale family is thrown into disarray when Cecily - whose children can't remember her ever being remotely spontaneous - disappears to a Greek island with no warning or explanation. Her reasons for doing something so out of character are a total mystery to her three daughters, high-powered executive Felicity, unfulfilled GP Julia and organised mother-of-five Lily.

When Justin walks out on Alice on their honeymoon, with no explanation apart from a cryptic note, Alice is left alone and bewildered, her life in pieces. Then she meets Evelyn, a visitor to the gallery where she works. It's a seemingly chance encounter, but Alice gradually learns that Evelyn has motives, and a heartbreaking story, of her own. And that story has haunting parallels with Alice's life. As Alice delves into the mystery of why Justin left her, the questions are obvious. But the answers may lie in the most unlikely of places...

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.

When her loving, free-spirited grandmother Primrose passes away, Victoria is bereft, yet resilient - she has survived tragedy before. But even her strength is tested when a mysterious woman attends Prim's funeral and claims to be the mother Victoria thought was dead. As the two women get to know each other and Victoria begins to learn more about her past, it becomes clear that her beloved grandmother had been keeping life-changing secrets from her. Desperate for answers, she still struggles to trust anyone to tell her the truth.

Hannah has done everything to make sure her life is safe and secure. A long way from her unstable childhood growing up in foster care, she’s content with her sweet, little, messy apartment and her satisfying job as a social worker. She quietly worries that, aged 36, she might never fall in love. But otherwise her life is where she wants it to be. Until, encouraged by her best friend to join a dating app, she meets Alex. He’s irresistibly handsome. He loves the same music as her. The same food as well. 

Finn and Kaz are about to meet for the first time. Ten-year-old Finn, a quirky, sensitive boy who talks a lot and eats only at cafes with a five-star hygiene rating, is having a tough time at school and home. Outspoken Kaz, 59, who has an acerbic sense of humour and a heart of gold, is working at the café when Finn and his mum come in. They don't know it yet, but the second time they meet will be a moment which changes both of their lives forever....

When Nick’s wife Kerry falls ill and dies, he realises for the first time how fragile his happiness has always been, and how much he’s been taking his good life and wonderful family for granted. Now, he suddenly finds himself navigating parenthood alone, unsure how to deal with his own grief, let alone that of his teenage son, Olly.

Quinn and Minnie are born on New Year’s Eve, in the same hospital, one minute apart. Their lives may begin together, but their worlds couldn’t be more different. Thirty years later they find themselves together again in the same place, at the same time. What if fate is trying to bring them together? Maybe it’s time to take a chance on love....

After two decades of looking after others, this is the day that Agnetha McMaster is reclaiming her life. It's her turn, her time, but will she have the courage to start again? Ten years ago, Mitchell McMaster divorced Agnetha and married her best friend, Celeste. Now he suspects his second wife is having an affair. This is the day he’ll discover if karma has come back to bite him. Thanks to a DNA test, this is the day that Hope McTeer will finally meet her biological father. But will the reunion bring Hope the answers that she’s looking for? 

When Catherine learns that she is dying, she remembers the words her husband once jokingly uttered and decides to leave him the ultimate posthumous gift: a time capsule containing photographs of their life together along with tape recordings in which she recounts every secret she ever kept, every unspoken thought whether loving or treacherous - the things they never said.

Cassie stares at the woman on her doorstep in disbelief. Just months after losing her only son, Josh, here stands a stranger claiming to be Josh’s girlfriend. But it’s not only the woman Cassie is shocked by, it’s the baby nestled in Kim’s arms. Cassie’s grandchild. I know what you did. As Cassie tries to do what’s best for baby Samuel, she starts to receive threatening messages from someone from her past - someone Cassie has been hiding from for a long time.

Ava only left her daughter in the pushchair for five minutes. The buckle was fastened, and she was sure it was safe. But when she came downstairs, the door was open and Abi was gone - she walked down the road, past the Lovegoods' house, and was never seen again. A year later, the Lovegoods throw a housewarming party, showing off the results of their renovation. Ava doesn’t want to go. She can’t bear to look down that end of the road, to see the place where Abi vanished, and she doesn’t want to spend time with people who don’t share her grief. 

As single mother Leah struggles to get her children ready one morning, the doorbell rings. Standing on the doorstep of their terraced house in Whitley Bay is a well-dressed stranger, Clio, who feels an emotional tie to the house that she can’t explain.

Where do you see yourself in five years? Type-A Manhattan lawyer Dannie Kohan has been in possession of her meticulously crafted answer since she understood the question. On the day that she nails the most important job interview of her career and gets engaged to the perfect man, she's well on her way to fulfilling her life goals. That night Dannie falls asleep only to wake up in a different apartment with a different ring on her finger and in the company of a very different man. The TV is on in the background and she can just make out the date.