When Hamish Macbeth, local constable of the Scottish village of Lochdubh, tries to break up one of the many fights involving Randy Duggan, the ruffian challenges him to a fistfight. But on the chosen day, Duggan is found shot to death and Macbeth is rumored to be the likely suspect. Macbeth must find the murderer, clear his name, and restore his Highland paradise to its usual tranquility.