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
John Richardson
Leonora Anselmi
Dagmar Lassander
Sandro Lucetti
Ninetto Davoli
Contessa Orselmo
Magda Konopka
Anselmi
Giacomo Rossi Stuart
Nelly
Daniela Giordano
Anna
Ursula Davis
Pantò
Tano Cimarosa
Marilyn
Dada Gallotti
Manlio "Jerry"
Gianni Williams
Emma Giorgi
Giovanna D'Albore
Marco Orsello
Livio Galassi
Marco Busciala
Mario
Giovanni Brusatori