Sixteen-year-old Danila lives with oppressive mother Galina and brutal father Pasha in a small village lost in the middle of a boundless forest. Cut off from society he has a problem adjusting to school life and is bullied for his sullen manners and total lack of interest in girls. Meanwhile, Pasha lusts after Katya, even promising her to leave his family if she gives in. Katya's husband Kolka is an alcoholic with physical and emotional impairments. Little does Pasha know that Danila shares his taste for women.
Cheating Notes
Danila sees his father enter the outdoor bathroom where Katya is taking a bath. He laughs when he sees the naked Katya rejects and throws his father out of the bathroom (16:00).
Danila helps Katya with her chores. She allows him to take a bath with her naked (33:16). I think it is implied that they have sex.
We see Danila and Katya take a bath together again (39:35). She scrubs his back, etc.
At 43:31, Danila's mom follows him towards Katya's house. She sees them kiss and proceed to the outdoor bathroom where the two have sex. She then sees Katya's drunk husband and tries to tell him to go to the bathroom with her to catch the two in the act, but he is too wasted to even know what she's saying and he proceeds to fall asleep on a wheelbarrow.
Danila's mom treats Katya coldly the next time they meet. A little later, she tells her husband that Katya is having an affair with their son. Frustrated because he got beaten by his own son, the dad goes to Katya's house and rapes her (1:05:20).
Danila saves Katya's husband from drowning and delivers him home. Katya has sex with him. When her husband wakes up, he sees the two in bed together. A struggle ensues and Katya's husband nearly chokes her to death. Danila saves her by stabbing her husband from the back and killing him.
Machine translated English Subtitles
https://www.opensubtitles.org/en/subtitles/8581869/the-forest-en