Police detective Paolo Germi and the mysterious Marisa meet each other at a dance hall. Germi is unsuspecting of the secret Marisa is carrying with her: adverse conditions forced her into prostitution. As Germi finds the young girl brutally murdered, he decides to go after her killers. During his investigation, he enters a world of intrigue and obfuscation that leave an endless trail of blood.
as Paolo Germi
as Marisa
as Police superintendent
as Gaudenzio Pesce
as Carmella
as Teti
as Giannino
as Gloria
as Chief S.M.C.D. office
as Il Menga
as Landlady
as Floriana
as Pesce's Friend (uncredited)