Francoise Debra, the pretty but hard-headed daughter of a rich tycoon, accepts her friend Phillip's invitation to scale the highest peak in Saint Luc. This decision worries her valet, Henri Rachou. Despite Henri's countless pleas, she is still bent on going. So poor Henri turns to Jean to help him to persuade Francoise. At first, Jean succeeds in convincing Francoise to abandon her plans. Later, however, Francoise changes her mind again.