Michel, who's crazy about jazz, has just found a rare album that he dreams of quietly listening to in his living room. But the world seems to have conspired against him: his wife chooses this moment to divulge an ill-timed revelation, his adult son makes a surprise visit, one of his friends knocks on the door, while his mother keeps calling him on his smartphone. Not to mention that today the residents in his apartment building are holding their annual House Party. Manipulative and a liar, Michel is ready to do anything to have a moment of peace and quiet. Is it still possible, in this day and age, to just have one hour of peace?
Three young men - Jacques, Pierre, and Michel - share an apartment in Paris, and have many girlfriends and parties. Once, during a party, a friend of Jacques' tells him he has a quite compromising package to deliver, and asks him if he can leave it discreetly at their place. Jacques agrees and, as he works as a steward, flies away for a one-month trip in Japan, telling Pierre and Michel about the package. Then, one of Jacques' former girlfriends drops a baby before their door, making Pierre and Michel believing it is the package they are waiting for. Their lives are then completely changed.
Catherine refuses to believe that her business partner, the unlikeable François, has a best friend, so she challenges him to set up an introduction. Scrambling to find someone willing to pose as his best pal, François enlists the services of a charming taxi driver to play the part.
