Mrs Taggart always celebrates her anniversary with her grown sons. It’s a tradition practised since the death of her husband and she is determined for it to continue. None of her three sons have dared to cross their ruthless domineering mother but this anniversary they intend to try. With cruel and brutal twists, the family get-together becomes a social nightmare beyond endurance.
| Production | Jimmy Sangster | Producer |
| Editing | Peter Weatherley | Editor |
| Writing | Jimmy Sangster | Screenplay |
| Directing | Roy Ward Baker | Director |
| Camera | Harry Waxman | Director of Photography |
| Art | Reece Pemberton | Production Design |
| Costume & Make-Up | Mary Gibson | Wardrobe Master |
| Writing | Bill MacIlwraith | Theatre Play |
| Costume & Make-Up | George Partleton | Makeup Artist |
| Costume & Make-Up | A. G. Scott | Hairdresser |
| Production | Victor Peck | Production Manager |
| Directing | Bert Batt | Assistant Director |
| Sound | Charles Crafford | Sound Editor |
| Sound | Les Hammond | Sound Recordist |
| Camera | Gerry Anstiss | Camera Operator |
| Lighting | Danny Eccleston | Electrician |
| Editing | James Needs | Supervising Editor |
| Sound | Philip Martell | Music Supervisor |
| Directing | June Randall | Continuity |
