A beautiful virgin inherits a castle, but when she arrives at it, she finds that the inhabitants include a strange nobleman and a bevy of beautiful women she suspects may be vampires.
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.
A young woman participates (unknowingly) in a satanic ceremony and gets possessed by the spirit of her late father.