In a penitentiary, four prisoners occupy a cell: Carrère (Gérald Laroche), who used his company to commit a fraud and was betrayed by his wife; the drag Marcus (Clovis Cornillac) and his protégée, the retarded Paquerette (Dimitri Rataud), who ate his six months sister; and the intellectual, Lassalle (Philippe Laudenbach) who killed his wife. One night, Carrère finds an ancient journal hidden in a hole in the wall of the cell. They realize that the book was