Calling Dr. Death is a 1943 mystery film, and the first installment in The Inner Sanctum Mysteries anthological film series, which was based on the popular radio series of the same name, the film stars Chaney Jr. and Patricia Morison, and was directed by Reginald Le Borg. Chaney Jr. plays a neurologist, Dr. Mark Steele, who loses memory of the past few days after learning that his wife has been brutally murdered. Aware of his wife's infidelity and believing he could be the killer, Steele asks his office nurse Stella Madden to help him recover his lost memories.