Dina’s mother moves to live with her daughter and almost immediately tension and conflicts arise between her and her son-in-law Pasha. Mother is trying to open Dina’s eyes to her husband's philandering ways, but she does not want to listen to anything. Mother decides to go to the country and asks her son-in-law to help transport things. But she immediately returns and admits that by accident ... she killed Pasha. Now, Dina and mother live in constant fear that everything will open. And at the same time, they gradually learn more and more unpleasant and mysterious details about Pasha. And when it is not known why the mother is dying, and cop Vedernikov comes to the apartment, Dina is already on the verge of a nervous breakdown.
23:35 - The husband has sex with his mistress. Her naked upper back and side boob are shown.
1:07:15 - The wife has sex with the cop who is investigating her husband's disappearance (her mother told her that she accidentally killed him in self-defense). We only see the after-sex dialog in bed.
(Spoiler) We find out that the husband is alive and is recuperating from his injury at his mistress' place.