Paul Martin is a lowly employee with a large vacation tour company. Having speculated on his advancement, Paul is now deep in debt and it is time to pay up. Desperate to gain access to the upstairs office and get a raise, he stops at nothing to get his way even if it means shaking up the system.—Happy_Evil_Dude
Louis de Funès, Jean-Claude Brialy, Michel Serrault
IMDB plot
The story takes place in a luxury building of about ten floors where the "321" agency has its headquarters. The company watches over the holidays of its customers.