Based on

Movies like The Flame (1947)

George McAllister, the black sheep of a wealthy family who has squandered his share of the family inheritance, lives in constant jealousy, hatred and resentment of his half-brother Barry, who has been supporting him. George gets his girlfriend, Carlotta Duval, a job as Barry's nurse, with the idea being to marry him, kill him, and inherit his money—and marrying George.