A demented widow lures unsuspecting children into her mansion in a bizarre "Hansel and Gretel" twist.
You can now watch Whoever Slew Auntie Roo? online on the following streaming providers in the United States.
| Directing | Curtis Harrington | Director |
| Writing | Robert Blees | Screenplay |
| Writing | Jimmy Sangster | Screenplay |
| Production | Samuel Z. Arkoff | Producer |
| Production | James H. Nicholson | Producer |
| Production | Jimmy Sangster | Producer |
| Sound | Kenneth V. Jones | Original Music Composer |
| Camera | Desmond Dickinson | Director of Photography |
| Editing | Tristam Cones | Editor |
| Production | Sally Nicholl | Casting |
| Sound | Ken Ritchie | Sound Recordist |
| Writing | David D. Osborn | Original Story |
| Crew | Gavin Lambert | Additional Dialogue |
| Production | Louis M. Heyward | Executive Producer |
| Production | James H. Nicholson | Executive Producer |
| Production | John Pellatt | Associate Producer |
| Art | George Provis | Art Direction |
| Costume & Make-Up | Sylvia Croft | Makeup Artist |
| Costume & Make-Up | Eddie Knight | Makeup Artist |
| Costume & Make-Up | Pat McDermott | Hairdresser |
| Costume & Make-Up | Joyce James | Hairdresser |
| Production | Donald Toms | Production Manager |
| Directing | Colin M. Brewer | Assistant Director |
| Costume & Make-Up | Bridget Sellers | Wardrobe Supervisor |
| Camera | Norman Jones | Camera Operator |
| Sound | Richard Langford | Sound Recordist |
| Sound | Peter Lennard | Sound Editor |
| Directing | June Randall | Continuity |
| Production | Dennison Thornton | Publicist |
| Sound | Kenneth V. Jones | Conductor |
