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.
Inspector Lavina
Leonora Anselmi
Sandro Lucetti
Contessa Orselmo
Anselmi
Nelly
Anna
Pantò
Marilyn
Manlio "Jerry"
Emma Giorgi
Marco Orsello
Mario
