A young man (Jim Hutton) is wrongfully accused of murdering the doctor who refused to treat his ailing mother. He is found guilty and placed in a mental institution under the care and supervision of Doctor Scott (Julie Adams). While in the institution Hutton meets a fellow convict who has mastered the art of "out of body" travel. Hutton soon masters this strange occult power and when the night watchman finds him lying on the floor of his cell, he is pronounced dead. However, before the doctor can perform the autopsy, Hutton comes "back to his body" and back to life. Soon the doctor´s real murderer is found and Hutton is released. Free at last, he returns to his home and finds it in a dilapidated state, since his mother died a few years ago. Hutton, enraged because of the injustice done to him, sets out to wreak vengeance on those responsible using his new found power.