Some mild kissing and necking occurs.

A dog gets hit by a car; some blood is seen around his mouth.

A puppy is implied being gassed in one scene.

A couple vicious dog attacks occur; nothing very graphic but most of the deaths are a bit bloody and prolonged. A brief but particularly graphic moment shows a woman's back ripped open.

Around 3, maybe 4, uses of "son of a bitch", 2 or 3 uses of "shit" and a derivative, as well as some religious exclamations.

Some smoking.

There is a home invasion and attempted sexual assult/murder towards the beginning of the film.

Almost every scene is intense in some way or another. The dog attacks are particularly gruesome, though not too graphic. The end sequence may be a bit much for some viewers.