In a college, three friends form a secret society. Their objective - going to America. One night, after one of their secret meetings, one of them sees a man coming out from a wall. The next day, after he talks about it, he disappears. Then, the second one vanishes. Are they gone to their dreams? That's when the art teacher is murdered. Suspicions now are too high so the third one decides to investigate.
An old woman living in an inn is killed and her family members seem like the likely culprits.
The residents of the apartment building on Rue Montmartre are a motley crew of oddballs and eccentrics. The daring son of a professor couple is in love with a sexy student who supplements her pocket money by working as an au pair. And then there's Monsieur Calomel, the crazy but helpful neighbor who's always ready with a funny face...
