Women, patients and paranoia surround an Irish night-shift orderly in a Canadian mental ward.
| Directing | John Guillermin | Director |
| Writing | Thomas Hedley Jr. | Screenplay |
| Production | Alexander MacDonald | Producer |
| Production | William T. Marshall | Producer |
| Production | Henk Van der Kolk | Producer |
| Sound | Paul Hoffert | Original Music Composer |
| Camera | John Coquillon | Director of Photography |
| Editing | Vince Hatherley | Editor |
| Editing | David Nicholson | Editor |
| Art | Trevor Williams | Production Design |
| Art | Richard Wilcox | Art Direction |
| Art | Steve Shewchuk | Set Decoration |
| Costume & Make-Up | William Ware Theiss | Costume Design |
| Costume & Make-Up | Ken Brooke | Makeup Artist |
| Costume & Make-Up | Phyllis Newman | Makeup Artist |
| Costume & Make-Up | Edward Ternes | Makeup Artist |
| Sound | Wayne Griffin | Sound Editor |
| Sound | Jack Heeren | Sound Engineer |
| Sound | Peter Thillaye | Sound Editor |
| Sound | Brian Simmons | Sound Mixer |