Father Maurice (Walter Matthau) is called on to perform an exorcism of a demon from a fat lady in this offbeat comedy. What emerges is Giuditta (Roberto Benigni) a narcissistic, fun-loving devil with a penchant for nonsensical sayings, and the devil attaches himself to Father Maurice for a series of comedy gags. Giuditta falls for the gambler Nina (Nicoletta Braschi) and impedes the priest's romantic progress with the beautiful Patrizia (Stefania Sandrelli). Maurice discovers that Nina and the expressionless Cusatelli (John Lurie) are two demons sent to retrieve the wayward Giuditta. Matthau and Benigni provide the majority of the laughs with Benigni doubling as director and devil.