The most prolific serial killer in American history, John Wayne Gacy (Mark Holton) kept his secret by appearing as a model citizen in his suburban Chicago neighborhood--even going so far as to volunteer as a clown at a local hospital. But as other side became known, a nation watched in horror as 30 brutal murders were traced back to Gacy, and the bodies were discovered in the crawlspace under his home. GACY is a disturbing account of the sickening deeds of this real life monster.