AviciousalligatornamedRamon,whowasflushedintothecitysewerasababy,survivestobecomea32-foot-longmenacewhodevoursanimalsandpeoplealike.Ramon'ssohugebecauseofthesteadydietofdeadpets-treatedwithgrowthhormones-thathe'sfedonfor12years.Nowthetremendousbruteisangryandlookingforrevenge.OnlydetectiveDavidMadisonknowsofRamon'sexistence,anditishistasktoprovetotherestofthecitythatatropicalbeastlivesintheirmidst.VeteranscreenwriterSayles'scriptfindstheperfectblendofcomedyandhorror,makingthisanentertainingrompthroughthesewersofChicago.
里卡尔多·斯卡马奇奥,马西米利亚诺·加洛,安娜贝拉·沃丽丝