Becker, a top detective with the Paris Criminal Investigation Division, shows up at the home of his wife, Julie, who—tired of seeing him put his investigations before everything else—has fled with the children to the village where she grew up, nestled between a pine forest and the ocean. Alas, the region—usually so peaceful—is in shock following a particularly heinous murder. The case worries Evelyne, his mother-in-law who runs the village town hall, and she asks her son-in-law to assist the local gendarmerie. But how can he hope to win his wife back by resuming his role as a cop right after arriving? However, Becker’s curiosity is quickly piqued by this unusual crime. He immediately launches into the investigation, even as mysterious deaths multiply all around them. It’s a double challenge for Becker, who will have to unmask the killer—and maybe even… save his marriage.