Bowery at Midnight (1942)

"The monster and the ghoul! One deals in wholesale murder...the other serves as a torture-master of the living dead! See it and shudder!"

A seemingly charitable soup kitchen operator (who moonlights as a criminology professor) uses his Bowery mission as a front for his criminal gang. Police attempt to close in on the gang as they commit a series of robberies, murders and bizarre experiments on corpses.