A man brings home a book (referred to as a "cookbook") and he and his wife playfully flip through it; it is implied that the book depicts sexual acts, though none are ever shown. Later there are vague references ("Was it the interesting one or the difficult one?" "I think it was the other one.") implying that they experimented with a few of the book's descriptions.

It's implied that a large family was massacred with a hammer, though it isn't shown.

A man smashes another man's head with a sledgehammer; not fully shown, and not particularly graphic.

References to alcohol.

Several jumpscares some are terrifying.

A mentally unstable man has a psychotic episode where he seems to spasm, screaming and shouting. May be frightening to younger viewers.

There are several suspenseful moments that may make viewers tense.