Detective Harry Denton's next case is a hot one when the magnificent mansion across the street from his apartment is consumed in a suspicious fire. The blaze has all the scorch marks of the East Nashville Arsonist, a phantom firebug. This time he left a dead body behind. The bludgeoned and lefttoburn victim was a wellknown psychotherapist...and the man that Harry's exwife, Lanie, was about to marry. Thanks to the doctor's will, which leaves a chunk of money to his fiancee, the cops think Lanie is the killer. It's up to Harry to match wits with the firebug before his ex goes up the river.