Henry Hawksworth is a man menaced by a multiple personality. There is Dana, the conservative family man; Johnny, violent and sociopathic; Peter, creative and childish; and Phil, protective and unemotional. "Dana" falls in love with Ann and marries her. Following a crime, "Johnny" is arrested and tried. In court, Henry's multiple personalities are painfully revealed.
| Directing | Paul Wendkos | Director |
| Writing | Ted Schwarz | Screenplay |
| Writing | Henry Hawksworth | Screenplay |
| Writing | Lawrence B. Marcus | Screenplay |
| Production | John Newland | Executive Producer |
| Production | Alan Jay Factor | Executive Producer |
| Editing | Susan McCray | Editor |
| Production | Jack Farren | Producer |
| Production | Dann Cahn | Associate Producer |
| Production | Stuart M. Besser | Associate Producer |
| Sound | Fred Karlin | Original Music Composer |
| Camera | Jack Woolf | Director of Photography |
| Art | Elayne Barbara Ceder | Production Design |
| Art | Rick Simpson | Set Decoration |
| Crew | Jay Fuller | Transportation Captain |
