The Little Detective Agency can’t afford to turn down a case, because financial problems continue to dog them.
Bernie Little may be a clever detective, but he can’t handle money and has a bad habit of destroying Porsches. Chet, a canine school dropout, is a loyal partner who thinks Bernie is the greatest. Luckily, Bernie and Chet are just picking out their latest used Porsche when they’re offered a new job. The mayor’s office of their small California town hires the pair to keep watch over Thad Perry, the star of a locally made movie that the mayor hopes will turn the area into a little Hollywood. Thad has a wild-child reputation, a drug habit and a bodyguard who’s as loyal as Chet but a lot bigger. Before Bernie’s reporter girlfriend, Suzie, moves to Washington, D.C., for a new job, she passes on a rumor that Thad has a history in the area. When people start to die, Bernie starts digging into the past to determine whether Thad is involved in crimes past or present. Dealing with three murders, blackmail, drugs, crooked cops and the need to keep Thad showing up for work every day is more than enough work for the clever pair, but they must end the carnival of crime as well.
Chet, who continues as narrator in this exciting fifth installment of the series (The Dog Who Knew Too Much, 2011, etc.), often struggles to understand what the humans are up to but always gets it right in the end.