Dr. Tremayne is an enigmatic psychiatrist running an asylum that houses four very special cases. Visited by his colleague Nicholas, Tremayne explains his amazing and controversial theories as to why each of the four patients went mad.
| Directing | Freddie Francis | Director |
| Writing | Jennifer Jayne | Writer |
| Sound | Ken Ritchie | Sound Recordist |
| Production | Norman Priggen | Producer |
| Sound | Bernard Ebbinghouse | Music |
| Camera | Norman Warwick | Director of Photography |
| Editing | Bernard Gribble | Editor |
| Art | Roy Walker | Art Direction |
| Costume & Make-Up | Eric Allwright | Makeup Artist |
| Sound | Nolan Roberts | Sound Recordist |
