Mister Frost is a 1990 supernatural thriller film starring Jeff Goldblum. The film was directed by French filmmaker Philippe Setbon, who also co-wrote the screenplay with Derry Hall, Brad Lynch and Louise Vincent. It co-starred Kathy Baker and Alan Bates.
A police detective named Felix Detweiler visits the palatial French estate of Mister Frost, whose first name is never given, to investigate a report of a dead body. Frost, with very little prompting, cheerfully admits that he has many bodies buried in his yard.
Frost is arrested and ultimately placed in an asylum, not having spoken a word for two years. During this time the police are unable to establish his identity. The detective leaves his job and becomes obsessed with Frost and the 24 corpses dug up from his garden.
Frost's long silence is broken when he encounters Sarah Day, a doctor at the asylum. Frost refuses to speak with anyone but her, then tells Day that he is, in fact, Satan. He reveals that he plans to goad her into murdering him.