In northern France, the police encounter a horrific scene: corpses are displayed in macabre poses in a model home. Young, inexperienced detective Sandra Winckler leads the investigation. Among the brand new furniture and fake family photos, she discovers a photo of Paul Maisonneuve, a former police officer with a legendary track record. What's he got to do with the case? Winckler has no choice but to involve Maisonneuve in the case. The key to this puzzling case lies in the older cop's past, but the first clue Winckler finds only adds to the mystery.