Blackenstein (1973)

"Blackenstein" is a 1973 Science Fiction movie directed by Frank R. Saletri and starring by Ivory Stone, Joe De Sue. Eddie is a Vietnam veteran who loses his arms and legs when he steps on a land mine, but a brilliant surgeon is able to attach new limbs. Unfortunately an insanely jealous assistant (who has fallen in love with Eddie's fiance) switches Eddie's DNA injections, transforming him into a gigantic killer.