Dick Powell stars as a hardboiled PI with a taste for kibble in the over-the-top screwball comedy You Never Can Tell. When an eccentric tycoon leaves six million dollars to his faithful dog King, trustee Ellen Hathaway (Peggy Dow) is besieged by fortune hunters when they learn she's next to inherit. After the German Shepherd is poisoned and Ellen's accused of the crime, King's spirit is granted special permission to go back to earth in human form and help clear his Ellen's name. Returning as private eye Rex Shepherd (Powell) and aided by a former racehorse named Goldie (Joyce Holden), King puts his nose to the ground in a dogged attempt to sniff out his killer's name.