Jérémie, a young man reaching a breaking point on all fronts, decides to leave behind Paris and return to Limosin, to the home of his intrusive mother.

A week before her wedding, Agathe Plichard, a pretty young woman of mixed race, is found drowned in the Creuse river. The police treat the case as an accident but her fiancé, Félix Bricourt, is convinced she was murdered. He decides to investigate by himself, despite the wishes of his family, a wealthy dynasty of the region. Won over by Félix's resolve, police inspector Carole Levasseur also decides to find out the truth. The murder of an independent journalist changes the course of the investigation, stirring up the past and unveiling the forgotten "Children of the Creuse" affair.

From its epic conception to its film death, the fantasized and fictitious portrait of the film-maker Walerian Borowczyk : Boro-in-the-box discovers a cruel and obscene world, crosses commonplace and colorful adventures, from Poland to Paris, caressing erotic birds and organic cameras in a phantasmagorical alphabet primer.