It is a dark December evening and Michael A. Madigan, brewery foreman and part-time private investigator, is raging at the world. Recently separated, he desperately needs to brighten up the mid-winter days. So, when the sexy wife of a professor of neurobiology asks him to tail her husband, Madigan agrees. Before long, he is out of his depth in the dirty underworld of serious crime. Murder is a matter of course and Madigan is on a hit list. But how far will Madigan go to expose the truth?