

Bumbling policeman P.C. Josser is dismissed from the force after a disastrous attempt to distinguish himself at a nightclub. Mistaking his own comrades for criminals, he inadvertently "bowls them over like nine-pins," leading to his immediate firing. After losing his job, Josser sets himself up as a private detective. He is hired by a young lady who owns a racehorse and needs protection for her "favourite" horse before a big race. To protect the animal, Josser goes undercover as a stableman. Despite his efforts, the horse is drugged, leading to further comedic mishaps as he attempts to solve the case and redeem his reputation.

Jack Hobbs
Dick O'Neill

Binnie Barnes
Rosa Wopp

Molly Lamont
Betty O'Neill

Joan Wyndham
Suzette
Ernie Lotinga
Jimmy Josser
Harold Wilkinson
Golightly
Arnold Bell
Dick Morris