A performer in a water ski show is blackmailing her former boyfriend. He will lose a multi-million dollar inheritance if he gets married before the age of 30, but she discovers he secretly got married to a rival in the water ski show. When the woman turns up dead, Cha Cha's nephew, who had an almost obsessive crush on her, is implicated in the murder.

The small town of Green Bay doesn't like outsiders. One such outsider was acquitted of the murder of his father-in-law, although everyone still considers him guilty. Ken is hired by the man's wife to prove to the townsfolk that the man is indeed innocent.