Dr. Wayne's mind becomes slightly imbalanced due to his study of the occult. One evening, while in the park, he sees a derelict named Buford attempting suicide. Wayne stops him and offers him a bargain. He gives Buford enough money to live high for three months. But at the end of the three months, Buford's body and soul will belong to Wayne. After three months have passed, Buford goes to Wayne's home. Wayne learns that the cause of Buford's problems was an unrequited love. The next day, Wayne's niece Edna arrives for a visit. Wayne discovers that it was she who had rejected Buford. Edna and Buford are puzzled by a room which Wayne always keeps locked. Eventually Wayne informs Buford that his son, who is mentally challenged, lives in the locked room. Wayne believes he can use Buford's soul to cure his son's brain. Wayne places Buford into a hypnotic trance, then enters his son's room to prepare for the experiment. But Wayne discovers his son on the floor, dead. The shock restores Wayne...