Puglia, Zuid-Italië, rond 1400. Een klooster wordt overvallen door de Tarantula-cultus, waarvan de fanatieke en krankzinnige leden de heilige plaats ontheiligen door obscene en bloedige handelingen te verrichten.
Nee, helaas is Flavia the Heretic nog niet beschikbaar op Netflix in Nederland.
| Directing | Gianfranco Mingozzi | Director |
| Camera | Alfio Contini | Director of Photography |
| Writing | Bruno Di Geronimo | Screenplay |
| Costume & Make-Up | Guido Josia | Costume Designer |
| Sound | Nicola Piovani | Original Music Composer |
| Writing | Francesco Vietri | Screenstory |
| Writing | Sergio Tau | Screenstory |
| Writing | Raniero Di Giovanbattista | Screenstory |
| Production | Teodoro Corrà | Production Manager |
| Writing | Gianfranco Mingozzi | Screenplay |
| Writing | Fabrizio Onofri | Screenplay |
| Writing | Sergio Tau | Screenplay |
| Editing | Ruggero Mastroianni | Editor |
| Directing | Cesare Landricina | Assistant Director |
| Production | Raniero Di Giovanbattista | Executive Producer |
| Camera | Sandro Tamborra | Camera Operator |
| Costume & Make-Up | Mario Michisanti | Makeup Artist |
| Production | Gianfranco Mingozzi | Producer |
| Art | Guido Josia | Set Decoration |
| Directing | Claudio Ventura | Assistant Director |
