A la mort de son père, Guillaume, commissaire de police, hérite du bowling familial. Il décide de le donner en gérance à son demi-frère répudié, Quentin. Le comportement pulsionnel de Quentin et son improbable gestion du bowling empêchent Guillaume de se consacrer pleinement à l’enquête sur une série de meurtres de jeunes femmes qui frappe la ville.

The 19 years old Thomas wakes up in a hospital after three years in a coma. He doesn't remember anything. The psychologist Anna tells him that his family has been murdered and that he is the only survivor of the massacre while his sister Laura is still missing.

Paris, the 1980s. Three students decide to celebrate their graduation with a visit of the Paris catacombs. But something, someone, is hunting them. Trapped deep underground, the group needs to get out before it's too late...