At a Chicago real estate office, four salesmen learn that they have been assigned to a new sales competition: the top two sellers will be rewarded with prizes and good leads on new prospective sales, while the bottom two will have their jobs terminated. Desperate to secure their positions, the salesmen begin to draw on all possible resources to win the game.

The following morning, office manager John Williamson discovers that the office has been burglarized, and that the much-desired leads for the Glengarry Highlands have been stolen. Suspecting his own salesmen, Williamson calls in a police detective to interrogate the men one by one. . . .