Diamond detective Sergeant Louw is given the difficult task of pursuing Reg Regallo a nightclub owner and diamond smuggler.

Private investigator Boerboel de Wet begins to imagine things when he reads a book about another private detective whose life is a reflection of his own? Or is it the other way around? In real life, Boerboel suddenly comes into money when he saves the life of an antiquities expert. In celebration, Boerboel opens a new office. One of his first clients is Marie.

Luke Billings (Lionel Jeffries) and his family have a problem with the new police sergeant Sam Hargis (Richard Todd) so they take over a small Transvaal town with the attention of drawing Hargis into a showdown. Hargis tries to get back up from the townsfolk who do not want to know, so is forced to lay low. As things get out of hand one of the Billings boys takes an interest in the storekeeper's wife, Priss Dobbs (Anne Aubrey). Having had enough her husband, Ernie (Jamie Uys) takes up the gun and heads down the main street alone. An act that prompts Hargis to join him. Slowly, the townsfolk turn up to back them up.