No sex or nudity. We see a couple talking in bed. They're naked but covered by a blanket. There are PG-13 movies with more explicit scenes.

Someone is hit by a car, not graphic but startling. A dead body in a lake, not graphic because the camera is far. Somebody is shot in the chest, we see a few drops of blood.

2 f-words, 2 "a-holes" in subtitles, and 2 or 3 s-words. Other milder words like "ass", "hell", and "damn" a few times.

2 or 3 scenes of characters drinking or smoking. Nothing excessive. No drugs.

The movie is intense, with some frightening scenes. The plot twists are intense (and unexpected).