A rich millionaire hires a sophisticated journalist to bring his somewhat dim-witted girlfriend up to the level of his peers. He fears that the showgirl's lack of etiquette may damage his own social reputation and tries to change her — but fails to realise that her enhanced eloquence will empower her to voice her own strong opinions.

When a New York lawyer realizes that he is the latest in a long line of Holly's discarded lovers he decides to get even with her. In order to blackmail her, he gets a gangster to secretly film Holly with her new lover in their hotel room.

In Manhattan, prostitutes are being murdered by a psycho. A detective is assigned to track him down and bring him in.