A few amusing little notions are streched to the point of diminishing returns in Psycho III.Opening sequence is a full-fledged homage to Alfred Hitchcock’s Vertigo and helps set the comic, in-joke tone of the rest of the picture. Unhappy novice Diana Scarwid is all set to jump from a church belltower but, in an effort to save her, one of the nuns falls to her death instead. Scarwid flees in distress, is given a ride through the desert by aspiring musician Jeff Fahey, and where should the unlikely and unsuspecting duo wind up but the Bates Motel. The whole enterprise is dependent almost entirely upon self-referential incidents and attitudes for its effect, and it eventually becomes wearying. Main pleasure of the picture stems from Anthony Perkins’ amusing performance.