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