None.

A character discusses "making out".

A character is described as horny.

Despite the film's premise, no violence towards animals is ever depicted on camera, nor shown in any great detail.

A character uses tweezers to remove a small bullet/pellet from their neck. Shown in closeup detail. Very bloody and tense.

Two characters fight in a confined space. It starts and ends abruptly. The whole scene is uncomfortably realistic and quite shocking.

A character falls down a steep hill and lands face-first onto a rocky creek-bed. Very bloody and tense.

A character is seen bleeding from an open head-wound. The scene is very intense but shown mostly in shadow.

A character is punched in the face and then kicked in the stomach before being spat on.

A character squeezes broken glass in their palm. Very bloody. The sound design is particularly disturbing. This is later seen again in even closer detail.

A character is grabbed and shoved into a wall by his throat. Brief, no one is injured.

A character is struck in the face with a glass coffee mug. The scene is not particularly bloody but is quite shocking.

Several uses of "fuck"

Someone is described as a "cunt".

A character uses a slur when insulting another on more than one occasion.

Two characters smoke a joint.

A character purchases cigarettes for an underage friend who then smokes them.

Two characters appear noticeably intoxicated.

It's implied a character is on meth.

The entire third act is very stressful and violent.

The third act contains many claustrophobic scenes.

Halfway through the film there is an extended sequence set in a forest. This entire scene is extremely intense and uneasy.

The entire film has an uneasy, dreadful tone.

Scenes of self-mutilation.