When dedicated, conscientious, but timid Karl is assigned to spy on the boss of a car rental service by his employer, he sets about the task diligently until he meets easy-going fun-seeking Hans.

When dedicated, conscientious, but timid Karl is assigned to spy on the boss of a car rental service by his employer, he sets about the task diligently until he meets easy-going fun-seeking Hans. Unabashed, Hans goes for what he likes—a spin in a Porsche, beautiful women—and he gets them. Before long, Karl discovers he’s found a true buddy, his own joie de vivre—and the nerve to try his hand at love.