Sylvie understands that the crime she and Tess committed decades ago was wrong, and that's why she has buried the secret deep in her past. No one needs to know about the person Sylvie once was, especially since it would mean the end of her relationship and ruin her breakout legal career. But when Tess is diagnosed with cancer, she decides that the time is right to make amends for past wrongs and organizes an extravagant New Year's Eve party as a backdrop for her dramatic confessions. As midnight approaches and the countdown begins, it seems one of the guests doesn't want a resolution. They want revenge. They want someone at this party to die.

When Sadie Roper moves back to London, she's determined to pick up the pieces of her shattered life. First, she needs to get her daughter settled into a new school. Next, she's going to get back the high-flying criminal barrister career she sacrificed for marriage 10 years earlier. But nothing goes quite as planned. The school is not very welcoming to newcomers, her daughter hasn't made any friends yet, and the other mothers are as fiercely competitive as their children. However, the tide starts to turn as Sadie begins to work on a scandalous, high-profile case and is befriended by Liza, queen of the school moms. Soon Sadie and her family start to thrive…but does this close new friendship prevent her from seeing the truth?

Alison has it all: a doting husband, an adorable daughter and a career on the rise --- she's just been given her first murder case to defend. But Alison drinks too much. She's neglecting her family. And she's having an affair with a colleague whose taste for pushing boundaries may be more than she can handle. Alison's client doesn't deny that she stabbed her husband --- she wants to plead guilty. And yet something about her story is deeply amiss. Saving this woman may be the first step to Alison saving herself. But someone knows Alison's secrets. Someone who wants to make her pay for what she's done, and who won't stop until she's lost everything.