The mother can be seen in her underwear and a shirt lying on the bed. In no sexual way.

The little girl is in the bath tub but nothing can be seen.

A girl left her shirt up and her bare belly is visible, her breasts aren't seen.

A woman is lying in the bath tub, her clothes are see through, but her breasts and buttocks aren't visible.

A woman is seen hanging by her lips with taxidermist twine and maggots crawling all over her face.

several glass break scenes.

a character pulls another character's legs violently.

a character hits another character's head with a gun.

The word "hell" is used multiple times

The main character can be seen taken pills (not drugs) in several scenes.

A little over, the halfway point of the film, a woman looks out the window, of her RV. And a corpse jumps into view. Followed by that, she starts violently coughing, up a wooden sewing needle. Attached to a thick threading. She begins continuously pulling out long amounts of stitching. And whilst pulling the stitching, she lifts up her shirt, to reveal stitching rapidly growing up her stomach. From the inside. (This scene is very disturbing. And is the only main reason it earned it's R rating)

The whole movie is generally frightening and several scenes can be shocking somehow and they're not proper for children that's why it's rated R.