A group of stranded travelers takes refuge in an old abandoned house, only to find out that they are not the only residents of the building.
| Actor | Role |
|---|---|
 Farley GrangerSpike | Spike |
 Lucia BosèSylvia Forrest | Sylvia Forrest |
 Giacomo Rossi StuartDonald Forrest | Donald Forrest |
 Stelvio RosiDr. Williams | Dr. Williams |
| MMia GenbergSusan West | Susan West |
 Gianni MediciJoe | Joe |
 Angelo Francesco LavagninoProf. Lawrence | Prof. Lawrence |
| DDino FazioInspector Wright | Inspector Wright |
| GGiulia RovaiJoe's Girl | Joe's Girl |
 Franco BeltrammeDet. Sam | Det. Sam |
 Loredana NusciakModel for Photo of Lady Sheila Marlowe | Model for Photo of Lady Sheila Marlowe |