Psycho is a 1960 American psychological horror thriller film produced and directed by Alfred Hitchcock. The screenplay, written by Joseph Stefano, was based on the 1959 novel of the same name by Robert Bloch. The film stars Anthony Perkins, Janet Leigh, Vera Miles, John Gavin and Martin Balsam. The plot centers on an encounter between on-the-run embezzler Marion Crane (Leigh) and shy motel proprietor Norman Bates (Perkins) and its aftermath, in which a private investigator (Balsam), Marion's lover Sam Loomis (Gavin), and her sister Lila (Miles) investigate her disappearance.
During a Friday afternoon tryst in a Phoenix hotel, real estate secretary Marion Crane and her boyfriend Sam Loomis discuss their inability to get married because of Sam's debts. Marion returns to work, steals a cash payment of $40,000 entrusted to her for deposit, and sets off to drive to Sam's home in Fairvale, California. Marion hurriedly trades her car en route, arousing suspicion from both the car dealer and a California Highway Patrol officer.