DCI Samuel Owusu is called to the scene of a gruesome discovery and learns the bones are connected to a cold case that left three people dead 30 years ago. Rachel Rimmer’s husband, Michael, has been found dead in his cellar. The French police need Rachel to answer questions about Michael and his past that she very much doesn’t want to answer. After fleeing London 30 years ago in the wake of a horrific tragedy, Lucy Lamb is coming home. While she settles in with her children and is just about to purchase their first-ever house, her brother takes off to find the boy from their shared past whose memory haunts their present. As they all race to discover answers to these convoluted mysteries, they will come to find that they’re connected in ways they never could have imagined.