Arcana is a 1972 Italian horror-drama film written and directed by Giulio Questi.

Plot

In a neighborhood in Milan, Ms. Tarantino, a widow, lives with her son and dedicates herself to practices of spiritualism. Convinced that his mother knows the true secrets of magic and not just some tricks, the son forces her to reveal them. He will use them against a young girl to be married, Marisa, and he will also spread panic in the neighbourhood, causing accidents of all kinds.