A young man, in love with a woman who can never be his, discovers a way to fulfil his dreams. In their childhood the three were the best of friends, the perfect triangle. But years later when Lena returns to her sleepy home the tone of the relationship changes and it is Robin she loves. Bill has discovered a method of duplication and decides to make an exact replica of the woman he cannot have... .with disastrous consequences for them all.
| Writing | Terence Fisher | Screenplay |
| Sound | Malcolm Arnold | Original Music Composer |
| Production | Michael Carreras | Producer |
| Production | Alexander Paal | Producer |
| Camera | Reginald H. Wyer | Director of Photography |
| Directing | Terence Fisher | Director |
| Writing | Paul Tabori | Adaptation |
| Directing | Renée Glynne | Script Supervisor |
| Costume & Make-Up | Dick Bonnor-Morris | Makeup Artist |
| Costume & Make-Up | Nina Broe | Hairstylist |
| Art | J. Elder Wills | Art Direction |
| Camera | Len Harris | Camera Operator |
| Editing | Maurice Rootes | Editor |
| Writing | William F. Temple | Novel |
| Sound | Bill Salter | Sound Recordist |