Nightmare (1956 film)

Nightmare is a 1956 psychological thriller film noir starring Edward G. Robinson

New Orleans big band clarinetist Stan Grayson has a nightmare in which he sees himself in a mirrored room, killing a man. He awakens to find blood on himself, bruises on his neck, and a key from the dream in his hand.Grayson goes to his brotherinlaw, police detective Rene Bressard, about the problem but is dismissed. Later, the two men go on a picnic in the country with Graysons girlfriend and sister. Grayson leads them to an empty house, the house of his dream, when it begins to rain. They are shocked to see that the house has a mirrored room just like in his dream. After its found out that a murder did indeed take place, Grayson becomes Bressards number one suspect. ........

Source: Wikipedia