Diabolique
Two women. One man. The combination can be murder.
3/22/1996
Imdb: tt0116095
Tmdb: 10988
Popularity: 13.779
Vote: 5.516/10 (284)

The wife and mistress of a cruel school master collaborate in a carefully planned and executed scheme to murder him. The plan goes well until the body, which has been strategically dumped, disappears. The psychological strain starts to weigh on the two women when a retired police investigator begins looking into the man's disappearance on a whim.