A doctor kills his girlfriend when he accidentally causes her to fall onto an ornamental flower which has metal spikes. He disposes of her by chopping up and then dissolving her corpse. The woman's sister accuses the doctor and an investigation begins. In the meantime, a second woman is killed and the doctor begins to receive metal petals through the post.
Gianni Garko
as Dr. Andrea Valenti
Carroll Baker
as Evelyne Graffi
Ivano Staccioli
as Ispettore Garrano
Pilar Velázquez
as Lena
Paola Senatore
as Daniela
Umberto Raho
as Psychiatrist
Eleonora Morana
as Female surgeon
Angelo Bassi
as
Giuseppe Mattei
as
Alessandro Perrella
as First young surgeon
Alba Maiolini
as Female porter
