A wealthy author's second wife begins to suspect that her 12-year old stepson may have murdered his mother, who mysteriously died in a bathtub accident.
| Directing | Andrea Bianchi | Director |
| Writing | Erich Kröhnke | Writer |
| Writing | Andrea Bianchi | Writer |
| Writing | Trevor Preston | Screenplay |
| Writing | Bautista Lacasa Nebot | Writer |
| Camera | Luis Cuadrado | Director of Photography |
| Camera | Harry Waxman | Director of Photography |
| Directing | James Kelley | Director |
| Production | Andrés Vicente Gómez | Executive Producer |
| Production | Graham Harris | Producer |
| Production | Harry Alan Towers | Producer |
| Production | Oliver A. Unger | Executive Producer |
| Sound | Stelvio Cipriani | Original Music Composer |
| Editing | Nicholas Wentworth | Editor |
| Production | Primitivo Álvaro | Production Manager |
| Sound | Roger Goodall | Sound Recordist |
| Sound | Brian Holland | Sound Editor |
| Sound | John Ireland | Sound Editor |
| Sound | Peter Lodge | Sound Recordist |
| Camera | Wally Byatt | Camera Operator |
| Camera | Ronnie Maasz | Camera Operator |
| Editing | Alan Jones | Assistant Editor |
| Production | John Southwood | Location Manager |
| Directing | Isabel Mulá | Script Supervisor |
