An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing field, complicated by some teenagers who decide to camp out in a dilapidated building on the estate.
Unfortunately the movie A Bay of Blood is not yet available on HBO Max.
| Sound | Stelvio Cipriani | Original Music Composer |
| Editing | Carlo Reali | Editor |
| Production | Giuseppe Zaccariello | Producer |
| Camera | Mario Bava | Director of Photography |
| Directing | Mario Bava | Director |
| Art | Sergio Canevari | Production Design |
| Crew | Carlo Rambaldi | Special Effects |
| Directing | Lamberto Bava | Assistant Director |
| Costume & Make-Up | Enrico Sabbatini | Costume Design |
| Camera | Franco Vitale | Still Photographer |
| Sound | Carlo Tarchi | Sound |
| Sound | Carlo Diotallevi | Sound Recordist |
| Sound | Vincenzo Restuccia | Musician |
| Directing | Patrizia Zulini | Continuity |
| Production | Roberto Cicutto | Production Supervisor |
| Costume & Make-Up | Franco Freda | Makeup Artist |
| Art | Sergio Canevari | Art Direction |
| Production | Fernando Franchi | Production Manager |
| Costume & Make-Up | Adalgisa Favella | Hairstylist |
| Camera | Emilio Varriano | Camera Operator |
| Camera | Gianlorenzo Battaglia | Assistant Camera |
| Sound | Mandrake Som | Musician |
| Writing | Dardano Sacchetti | Story |
| Writing | Giuseppe Zaccariello | Screenplay |
| Writing | Mario Bava | Screenplay |
| Writing | Filippo Ottoni | Screenplay |
| Crew | Sergio Canevari | Additional Writing |
| Writing | Gene Luotto | Dialogue |
| Writing | Gianfranco Barberi | Story |
| Crew | Franco Vanorio | Additional Writing |
| Crew | Laura Betti | Additional Writing |
