Lise and Clovis met three years ago. They're married now. She is a police captain; he is a paramilitary police commander. Their son Tom just turned 9 months old. Lise's mother Marianne, who suffers from Alzheimer's, lives nearby in a specialized care facility on the edge of the lake. They seem happy and united, surrounded by faithful friends, when we discover the dark side of Clovis - and at the same time, the violent murder of two women. Together the couple takes on a challenging and terrifying investigation, which soon leads them to the conclusion that a serial ...