Maléfique

A prison cell. Four prisoners - Carrer, a young company director accused of fraud, 35 year old transsexual in the process of his transformation, Daisy, a 20-year-old mentally challenged idiot savant, and Lassalle, a 60-year-old intellectual who murdered his wife. Behind a stone slab in the cell, mysteriously pulled loose, they discovered a book: the diary of a prisoner, Danvers, who occupied the cell at the beginning of the century. The diary contains magic formulas that supposedly enable prisoners to escape...but since the discovery of the book, strange and troubling phenomenon multiply in the prison cell. (official distributor synopsis)