Mr. Happiness (1978)

Directed by Steven Schacter
Cast: Dominic Chianese, Alaric Jans, Eric Loeb, Patti LuPone, Paul Milikin, Michael J. Miller, Bill Moor, David Sabin

Martino is a lazy young Neapolitan who lives in Switzerland at his sister's place. When she suffers an accident, he has to replace her in at work as a cleaning lady. Martino cleans the office of a psychologist and mental coach and one day, when the doctor is absent, he decides to try to replace him, assuming the name "Mr.