From the R-rated version:

A young woman says that she has a pair of handcuffs in her underwear drawer, implying a sexual use for them.

A young woman says that she had sex with a young man.

Some sexual references.

Smiley murders people throughout the movie.

About 17 f-words, several uses of s**t, a couple religious profanities and several mild obscenities.

Many college students are shown drinking from red cups at two house parties.

Two young women share a marijuana cigarette, and they both are shown to be high afterwards. One of them later says that she just got high.

There are many "jump" scares throughout.

The serial killer wears a creepy mask which looks like a blank human face with a smiley face carved into it, with blood lining the face.

The climax of the film is rather dark.