91 mins | Thriller, Horror | Feb. 11, 1972
91 mins | Thriller, Horror | Feb. 11, 1972
| IMDb rating | 6.1 |
| Producers | American International Pictures, Hemdale |
| Original title | Whoever Slew Auntie Roo? |
| Directors | June Randall, Colin M. Brewer, Curtis Harrington |
| Writers | Robert Blees, Jimmy Sangster, David D. Osborn |
as Mrs. Forrest
as Christopher Coombs
as Katy Coombs
as Mr. Benton
as Insp. Willoughby
as The Pigman
as Miss Henley
as Dr. Mason
as Clarine
as Albie
as Angela Barnes
as Peter Brookshire
as Miss Wilcox
as Reggie Pike (uncredited)