A killer is cleaning up the streets of Milan by murdering those considered as deviant. An ornamental dragonfly, soaked in the blood of the victim, is left on each body.
Inspector Scaporella
Ingrid
Silvana Scaporella
Pietro Volpini
Edmundo
Claudia Volpini
Professor Sandro Campitelli
Police Commissioner
Ruggero
Lucia - Prostitute victim
Giulia - Secretary
Marie - scrubwoman
Cop