All the staff of a luxury hotel in Manga del Mar Menor is nervous about the arrival of Don Juan, a potentate who has reserved most of the hotel for himself and his entourage, as he gives out impressive tips. Don Juan has been preceded by Rosita, an ex-folkloric who enlivens waiting and boredom, flirting with every neighbor's son who discovers his eagle sight. Installed in the hotel, Don Juan, who besides money has a crazy hobby for women, chases every girl who enters his radius of action giving constant skids. Rosita, who is in the reserve, has a reprisal program in which the hotel's waiters and bellmen happily collaborate. Fights, scares and persecutions follow, to the exhilarating and unexpected end.