![Diabolique](https://image.chilimovie.com/region2/en/300px/20231103/6wmNcHjXnBEhlAvsUUR6ytdLKHO.jpg)
The cruel and abusive headmaster of a boarding school, Michel Delassalle, is murdered by an unlikely duo -- his meek wife and the mistress he brazenly flaunts. The women become increasingly unhinged by a series of odd occurrences after Delassalle's corpse mysteriously disappears.