Two hoodlum brothers are brought into a hospital for gunshot wounds, and when one of them dies the other accuses their black doctor of murder.

For Miranda Wells, moving to New York to live in Dragonwyck Manor with her rich cousin, Nicholas, seems like a dream. However, the situation gradually becomes nightmarish. She observes Nicholas' troubled relationship with his tenant farmers, as well as with his daughter, to whom Miranda serves as governess. Her relationship with Nicholas intensifies after his wife dies, but his mental imbalance threatens any hope of happiness.

Bud Hooper, a cadet at Winsocki Military Academy, sends an invitation to movie star Lucille Ball to come to Winsocki's big dance. Ball's publicity-hungry agent convinces her to go in order to boost her career. Complications arise when Bud's girlfriend Helen Schlesinger unexpectedly shows up, too.