Meet Chet, the wise and lovable canine narrator of Dog on It, who works alongside Bernie, a down-on-his-luck private investigator. Chet might have flunked out of police school ("I'd been the best leaper in K-9 class, which had led to all the trouble in a way I couldn't remember exactly, although blood was involved"), but he's a detective through and through.
In this, their first adventure, Chet and Bernie investigate the disappearance of Madison, a teenage girl who may or may not have been kidnapped, but who has definitely gotten mixed up with some very unsavory characters. A well-behaved, gifted student, she didn't arrive home after school and her divorced mother is frantic. Bernie is quick to take the case -- something about a cash flow problem that Chet's not all that clear about -- and he's relieved, if vaguely suspicious, when Madison turns up unharmed with a story that doesn't add up. But when she disappears for a second time in a week, Bernie and Chet aren't taking any chances; they launch a full-blown investigation. Without a ransom demand, they're not convinced it's a kidnapping, but they are sure of one thing: something smells funny.

Their search for clues takes them ...