The life of Yulia, a pathological loser and old maid, is quiet and measured. But only until Zhenka, Yulia's thirteen-year-old niece, intervenes. Having decided to arrange her aunt's future, she places a marriage ad in the newspaper: "need a man for life..." The only possible, from Jenka's point of view, candidate for happiness with the "blue stocking" turns out to be tough and rude Gleb. True, a "real man" is not going to get married. And Yulin's number was dialed by mistake. On top of everything, he managed to implicate both aunt and niece in a dangerous game, the main prize in which - someone else's container with real diamonds ...