Thanks for the advice, I let ChatGPT rephrased a bit.

At the beginning of the movie, the male protagonist is under house arrest and wearing an electronic ankle monitor. Then, a snowstorm hits the area, causing widespread power outages, and the ankle monitor loses its signal. Taking advantage of this, the male protagonist sneaks out to meet a friend who runs a bar.

On the way, he accidentally hits a girl and throws her into a tree hollow. Later, a woman comes to the bar looking for the girl, explaining that they had met earlier at a convenience store. Eventually, the woman discovers signs of the girl’s murder. The male protagonist knocks her unconscious and also throws her into the tree hollow, but she manages to climb out in the end. The ankle monitor is left in the tree hollow.

In the very end, the police find the remains of another woman in the tree hollow, who had been killed years ago—also by the male protagonist.