Jack Palance stars as a self-serving, abusive boor who becomes stranded (along with his two children) by a thunderstorm, forcing them to take shelter in an isolated country estate owned by a group of mysterious and wealthy old dowagers. Seeing a golden opportunity, Palance soon turns to plundering their estate, but his plans collide with the secret activities of a Satanic snake-cult who carry out ritual sacrifices in the attic.
| Actor | Role |
|---|---|
 Jack PalanceStokes | Stokes |
 Christopher LeeHost | Host |
| HHelen HughesMaggie | Maggie |
 Frances HylandDody | Dody |
 Mike StarrTom | Tom |
| RReginald LoveAdams | Adams |
 Cindy HindsNot listed | Not listed |
| DDerrick JonesNot listed | Not listed |