Experiment in Evil

Mr. Joly, doctor Cordelier's lawyer, is amazed to discover that his client and friend leaves his possessions to a stranger, Opale, a sadistic criminal. He needs this man to prove that people's behavior can be adjusted at will...

Experiment in Evil is a 1961 drama horror movie directed by Jean Renoir, starring Michel Vitold, Teddy Bilis, Jean-Louis Barrault. It holds an IMDb rating of 6.5/10 from 1,425 votes and runs 1h 35m.