While hosting a masked orgy, socialite Scarlet is murdered by an unknown killer. Hired to investigate the case is put upon private dick Dexter Sleuth, who immediately takes to interviewing the soiree’s various guests.

A shy, sex-obsessed young man and a plain young woman both work for a publisher of dirty books. When the two of them get tired of being pushed around at work, they turn to violence against their employer and his secretary to get revenge.