The plot is adapted from a classic tale by Guy de Maupassant about a horrifying horla, the evil, murderous spirit of an executed man, possesses a French judge in this suspenseful horror film. Now the only way to stop it is to commit suicide.
Diary of a Madman is a Horror movie. Movies starcast is Vincent Price, Reginald Le Borg, Nancy Kovack, Chris Warfield, . 64% people like this.Diary of a Madman Movie release in 1963.