A woman dressed in black is murdering young women. The police question lawyer Anselmi for whom one of the girls worked as a secretary, and it turns out that all the victims were friends of lawyer's wife Leonora.
| Directing | Tano Cimarosa | Director |
| Writing | Adriano Bolzoni | Screenplay |
| Writing | Luigi Latini de Marchi | Screenplay |
| Production | Giovanni Carrino | Producer |
| Sound | Carlo Savina | Music |
| Camera | Marcello Masciocchi | Director of Photography |
| Editing | Romeo Ciatti | Editor |
| Costume & Make-Up | Paola di Sante | Costume Design |
| Directing | Gianni Siragusa | Assistant Director |
| Camera | Ermanno Serto | Still Photographer |
