House of Horror

Bachelor Chester and his spinster sister, Louise, are summoned from Ohio by a "mystery man" who instructs them to visit their Uncle Abner in New York City. A miserly recluse, Abner lives in an old house where he has gathered a strange collection of people: Brown and his wife Gladys; two untrustworthy servants; the mystery man; and Thelma and Joe, two young people on the track of a missing diamond owned by Abner. (TCM)