Gregor Slavinsky went overboard. Or did he? He was murdered. Or was he? It's up to Detective Heath Barrington and his partner, police officer Alan Keyes, to find out as they search for clues and a missing twenty-five thousand dollars aboard an old lake steamer and throughout 1947 Milwaukee, Wisconsin. They are up against gangsters, con artists, and a very seductive Grant Riker, a fellow policeman who could come between Heath and Alan, upsetting their romance. The three of them race the clock to find the truth amidst lies, secrets, and possible scandal, while riding the waves of a potential love triangle.