Before I Hang

The great Boris Karloff stars as Dr. John Garth, an aging scientist condemned to hang for a mercy killing. Garth injects himself with an experimental anti-aging serum moments before his execution—only to have his sentence commuted. Now youthful, Garth discovers his miracle cure is spiked with a killer’s bloodlust, turning the ageless genius into a strangling madman who stalks his friends and family. Produced under the title, The Wizard of Death, this effective noir-tinged B-movie was the third and last of three "mad doctor" shockers (after The Man They Could Not Hang and The Man with Nine Lives) that teamed Karloff with Wisconsin-born director Nick Grinde.