Ilya Kochetkov is a successful lawyer. As a result of an unsuccessful marriage, he became disillusioned with women, and his young son is closely raised by the large and noisy Kochetkov family. But suddenly, in the absence of Ilya, the beautiful Rita arrives at their country house and announces that she is his bride. A few days after this visit, Ilya discovers that important documents are missing. In a rage, he tries to figure out the thief, and his suspicions fall on Zhenya, a young girl who has neither parents, nor an apartment - nothing except an expensive car left over from her deceased father, a racing driver...