George Slattery is being ridden hard by his parole officer since getting out of jail for murder. He's fallen for a nice woman in the neighborhood, but a small-time gangster thinks she belongs with him. The constant harassment by the thug and his goons is testing George's ability to keep his fists in check and himself out of prison.
A young man follows his father's footsteps and becomes a police officer. He learns that one of his Dad's old buddies who's still of the force is on the make. The rookie offers the lieutenant a chance to "go straight" if he'll help him get evidence against the mob. That's when he learns that it could be deadly to expose the corruption.
A poor Frenchman (Vincent Price) is mistaken upon his arrival in England for another man from France expected to arrive at that time. He is brought to the home of Mr. Smith, an apparently wealthy art connoisseur, and his lovely daughter (Valerie French). He soon finds out that both Mr. Smith and the expected Frenchman (Jonathan Harris) are involved in a scheme to sell a fake Corot painting.
A psychiatrist takes refuge in the home of a stranger when one of her patients tries to run over her with his car. (He didn't take the news that he was going to be committed very well.) After stalking the house and terrorizing the pair for hours, the patient finally leaves. The doctor and homeowner attempt to escape, but the deranged man returns, more desperate than before to break into the house.
A wife finds a letter in the pocket of her suave husband and learns he's been seeing a young woman. She suspects he's been cheating, but he says she's the daughter of a friend and simply reminds him of his youth. The wife decides to get to the bottom of it all by having the "chick" join them for dinner.