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?

Twenty years ago, Carly Cooper went on an epic quest to track down all the men she’d ever loved and lost in the hope that one of them was her Mr Right. Now, two decades and two teenage sons later, she thinks she might have got it all wrong. As the years have passed, lots of things have changed, leaving Carly asking, ‘What now?’ With a divorce and an empty nest on the horizon, Carly sets off once more to Los Angeles with her band of trusty girlfriends, to find the carefree, wild and adventurous Carly Cooper that she used to be.

One year ago today, Tress Walker’s husband was killed in a car accident, on a trip with his secret mistress whilst Tress gave birth to their son. But as time moves on, Tress has to choose whether to protect her fragile heart or open it to love again.

Noah Clark was equally devastated to discover his wife and his best friend were having an affair. Now the love of his life is asking for a second chance. But can there ever be a way back once the trust is broken?

On Christmas Eve, 1968, Cathy McLean receives a surprise visit from the lost love of her life and is forced to choose between the one that got away and the one that stayed. On Christmas Eve, 1993, Cathy’s daughter Helena is overjoyed to hear that her boyfriend is about to propose, until a devastating encounter threatens to bring her heartbreak instead of diamonds. On Christmas Eve 2023, a shocking discovery rocks Eve Quinn’s world. The only gift Eve wants this year is the truth. But will it take a Christmas miracle to unravel generations of secrets?

Suze has a niggling feeling that her husband Karl's marital sat-nav has taken a wrong turn and led him down the road to temptation. What's a suspicious wife to do? Mel knows that her sweet, docile husband Joe would never, ever cheat. But when Suze, her sister-in-law, hires a honeytrap to test Karl, the results blow Mel's world apart. Mel, Joe, Suze, Karl. They're family. They're friends. And they're about to discover whether or not they can navigate those other f-words - fidelity and forgiveness.