The Swamp of the Ravens (1974)

Dr. Frosta, a twisted scientist, disposes of body parts and corpses in a sinister marsh, only to unleash a vengeful force. As the remnants of his victims rise from the depths, they seek retribution against their murderer. The eerie atmosphere intensifies as the swamp becomes a battleground for the living and the undead. With each encounter, the horror escalates, revealing the consequences of Frosta's gruesome experiments. The relentless undead are poised to reclaim their lives, leaving a trail of terror in a chilling quest for revenge.