At sinister carnival The Garden of Evil, the main attraction is Goliath, "world's largest gorilla...cost the lives of 1,000 men before his capture." Barker Joey Matthews is about to enter the gorilla act, teamed with seductive mantrap Laverne, the owner's wife. Then a man is found dead of a broken neck. Was it Goliath or someone wearing Joey's gorilla suit? Detective Sgt. Garrison finds four interlocked romantic triangles among the suspects...