The bizarre and deadly industrial accidents at the Blue Ribbon laundry force Detective Inspector Hunton to intervene. Hunton's investigation focuses on the mangler, a bloodthirsty horror machine, and simultaneously on the man who rules the company like a tyrant: Bill Gartley. Hunton, along with his friend Jackson, a scholar of occultism, discovers that there's a contract between the machine and Gartley. This contract demands the blood of a virgin 16-year-old girl at least once a year. After further gruesome incidents, the investigators are determined to disable the murderous machine. The "Mangler," a colossus of steel and iron, unleashes its immense power against its adversaries and threatens to annihilate them all...