PI Mike Hammer is moving through the dark streets of New York City when he hears a child's terrible scream. When he finds the child, he also discovers the naked body of a beautiful woman who has been beaten to death with a whip.

So begins a complicated and baffling case, involving the deaths of other women and a newspaper reporter, who was tracking aspects of the case as well as following the lives of the city's prostitutes. Mike uncovers a sadistic ring of international figures, where women risk their lives for a fortune in an attempt to pull themselves out of despair.

Can Mike, with the help of his beloved Velda, break the ring that is crushing the lives of vulnerable women?