A researcher investigating a notorious serial killer who was hanged 20 years earlier seemingly becomes possessed by the long dead strangler.
You can now watch Grip of the Strangler online on the following streaming providers in the United States.
| Directing | Robert Day | Director |
| Production | John Croydon | Producer |
| Writing | John Croydon | Writer |
| Writing | Jan Read | Writer |
| Production | Richard Gordon | Producer |
| Editing | Peter Mayhew | Editor |
| Sound | Buxton Orr | Original Music Composer |
| Camera | Lionel Banes | Director of Photography |
| Art | John Elphick | Set Designer |
| Production | Ronald Kinnoch | Production Manager |
| Sound | H.C. Pearson | Sound |
| Costume & Make-Up | Jim Hydes | Makeup Artist |
| Costume & Make-Up | Barbara Barnard | Hairstylist |
| Directing | Douglas Hickox | Assistant Director |
| Production | Richard Gordon | Executive Producer |
| Crew | Les Bowie | Special Effects |
| Costume & Make-Up | Anna Duse | Costume Supervisor |
| Camera | Leo Rogers | Camera Operator |
| Sound | Terry Poulton | Sound Editor |
| Directing | Hazel Swift | Script Supervisor |
| Sound | Frederick Lewis | Conductor |
