Ness falls for a beautiful call girl while investigating a blackmail racket linking Capone to several noted court judges.

The night before he is scheduled to appear before a judicial review board, Judge Ryan is found on the street below his luxury hotel room, the victim of an apparent suicide. Although a note is found in the judge's pocket, Ness and the Untouchables are suspicious. They learn that the judge spent his last night in the company of a young woman named Sybil, a model who works for CIeo Paine, whose agency is rumored to double as a high-class call-girl operation.

Since every judge that is associated with a Capone case has been spotted with one of CIeo's models, Ness can't help but wonder if there is a connection and sets up a round-the-clock surveillance of CIeo's apartment. Watching Cleo from across the street, the just-divorced Ness can't help being struck by her beauty