The relatives of a recently deceased man named Kovac gather at is creepy mansion for the reading of the will. Before the will can be read, however, the relatives began to be murdered one by one.
| Camera | Brick Marquard | Director of Photography |
| Writing | Charles A. Wallace | Screenplay |
| Sound | Paul Dunlap | Original Music Composer |
| Art | Harry Reif | Set Decoration |
| Directing | Francis D. Lyon | Director |
| Art | Paul Sylos | Art Direction |
| Production | Earle Lyon | Producer |
| Production | Kerwin Coughlin | Casting |
| Production | Jasper Russel | Casting |
| Production | Fred Jordan | Executive Producer |
| Production | Wendell E. Niles Jr. | Associate Producer |
| Editing | Robert S. Eisen | Supervising Editor |
| Costume & Make-Up | Robert Dawn | Makeup Artist |
| Costume & Make-Up | Linda Trainoff | Hairstylist |
| Production | Joe Wonder | Production Manager |
| Crew | Roger George | Special Effects |
