New York police are bemused by reports of a giant flying lizard that has been spotted around the rooftops of New York, until the lizard starts to eat people. An out-of-work ex-con is the only person who knows the location of the monster’s nest and is determined to turn the knowledge to his advantage, but will his gamble pay off or will he end up as lizard food?

While diving for sunken treasure, street-smart gumshoe Tony Rome finds the body of a gorgeous blonde, her feet stuck in a block of cement. Soon after, tough guy Waldo Gronski hires him to find a missing woman named Sandra Lomax, and Rome wonders if there’s a connection. He sets about trying to locate the woman, and in no time finds himself mixed up with a beautiful party girl and a slippery racketeer.