Roger Latour introduces himself to Wilky Studios as the famous thief Silver Jim, and offers to fulfill the role of king of the slums for whom the producer is still looking for an actor. Wilky, impressed, hires him.
Major Labourdette receives an accommodation ticket to spend the night with the widow Martin. Now, there are two Martin widows in the small garrison town, and one of them keeps a house of promiscuous girls. Labourdette gets the wrong landlady and ends up at home. He will keep an unforgettable memory...
An aging engineer pursues a scheme to build a flying machine at the expense of his family's health. When his daughter falls ill, he enters a flying competition to win money for her treatment, even though his design is dangerously untested.