Calling Dr. Death (1943) was the first of the Universal Pictures Inner Sanctum mystery films. The movie stars Lon Chaney, Jr. and Patricia Morison, and was directed by Reginald Le Borg. The "Inner Sanctum" franchise originated with a popular radio series and all of the films star Chaney.
Dr. Mark Steele (Lon Chaney, Jr.) loses memory of the past few days after learning that his wife has been brutally murdered. Steele is aware of his wife's infidelity and believes he could be the killer. He asks his office nurse Stella Madden (Patricia Morison) to help him recover his lost memories.
Lon Chaney, Jr. ... Dr. Mark Steel (as Lon Chaney)
Patricia Morison ... Stella Madden
J. Carrol Naish ... Inspector Gregg
David Bruce ... Bob Duval
Ramsay Ames ... Maria Steele
Fay Helm ... Mrs. Duval
Holmes Herbert ... Bryant (the Butler)