House of Frankenstein: 1944
Universal Pictures
Black and White

Director: Earle Kenton
Cast: Lon Chaney Jr., Boris Karloff

Plot: A mad doctor (Karloff) murders the proprieter of a carnival of horrors and nets himself Dracula, along with directions to Frankenstein's castle. He get's there, and in a truly inspired piece of writing, the movie finishes up like Frankenstein Meets the Wolf Man (1943) with Dracula added in for good measure.