A vicious alligator named Ramon, who was flushed into the city sewer as a baby, survives to become a 32-foot-long menace who devours animals and people alike. Ramon&#39s so huge because of the steady diet of dead pets - treated with growth hormones - that he&#39s fed on for 12 years. Now the tremendous brute is angry and looking for revenge. Only detective David Madison knows of Ramon&#39s existence, and it is his task to prove to the rest of the city that a tropical beast lives in their midst. Veteran screenwriter Sayles&#39 script finds the perfect blend of comedy and horror, making this an entertaining romp through the sewers of Chicago.