Shortly before New Year, Borya loses his memory, and the only clue that can help is the inscription "Z.G." that he finds on his hand. At the same time, the police captain is trying to resolve personal issues and separate his own daughter from her boyfriend, two thrill-seekers and their beloved grandmother from the building are once again preparing for self-harming feats, and Vera Brezhneva is once again driving the strong half of humanity crazy, specifically — Private Bondarev, a former taxi driver.