A millionaire is found murdered in his apartment. Suspicion falls on a variety of suspects, including his fiancé and her parents, the butler, and a professional mentalist known as The Great Gambini.
During a police strike in Nova Scotia’s capital city, a gang of hoodlums end up unintentionally causing the owner of a gay bar to be killed. This escalates into a string of murders with a lone survivor trying to not be next.
Edmund Lowe plays Barrymoresque stage actor Cory Williams, who vaingloriously tries to solve a bizarre series of murders. Though the killings take place in the heart of New York, the victims are killed by the venom of a rattlesnake. It turns out that the killing has a vendetta against theater people, and Williams may be next on the list.
When 21-year-old Melissa Collins commits suicide, her guardian, the domineering American newspaper publisher William T. Marshall, searches (in flashback) for a reason. He finds it in a letter he receives from Melissa, after her death. In this, she asks Marshall to take revenge on her lover, who caused her such pain he made life not worth living. Marshall hires a professional criminal to plot the murder, with the proviso that the victim undergo the torments of the damned before he is finally killed. Trouble is, the wrong man is targeted for the publisher’s revenge.
Rookie policewoman Christine Miller volunteers to go undercover to avenge her father’s death. Posing as a drug dealer, Christine inveigles her way into a vicious narcotics ring. Inevitably, she is found out, and it’s up to police-lieutenant Mike Trent, who’s fallen in love with Christine, to come to her rescue.