Four prisoners in a cell - Carrere, Marcus, Daisy and Lassalle. Behind a stone slab in the cell, mysteriously pulled loose, they discover a book: the diary of a prisoner, Danvers who occupied the cell at the turn of the century. The diary contains magic formulas that supposedly enabled the prisoner to escape... A horror film in the purest sense, Malefique doesn't pretend to be a psychological thriller, nor does it temper its threat with comedy or faux scares