'80s French film upon which the Hollywood film 'Three Men and A Baby' was based. Three young men (Jacques, Pierre and Michel) share an apartment in Paris, and enjoy a life of bacchanalian excesses. Such confirmed bachelors are they that they've signed a contract never to allow a girl to spend more than one night at the flat. Once, during a party, a friends of Jacques' tells him he has a quite compromising package (which turns out to be cocaine) 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 on a one-month trip to 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. Fun, games and paternal misunderstandings ensue.