Vitya is preparing for the wedding with Masha, the love of his life, and in the evening before the celebration he goes for a drink with friends. Waking up in the morning after a stormy night, Vitya discovers that he does not remember anything about the previous night, and the bride leaves him and leaves.

Overcome with despair, Vitya begs fate to return his wedding day so that he can fix everything. And, as if in response to his pleas, the next morning he wakes up on the same day — September 3.