None whatsoever.

A man is seen hanging, having committed suicide.

A woman jumps from a tall industrial tower.

In two separate yet almost identical scenes, characters place guns under their chins and shoot themselves. These scenes are very brief and no blood or bullet wounds are shown.

A large cargo plane crashes and explodes. The crash is out of sight.

One use of the word 'shit'. (This may depend on the version of the subtitles.) One or two uses of hell.

Some smoking.

Very intense focus on the effects of loneliness and depression, which may effect certain viewers with a history of such things.

Scenes where the characters find disturbing videos and footage on the internet with ghostly figures and people behaving erratically and committing suicide can be very disturbing and intense.

Many frightening scenes, with ghost-like figures and sound and music to heighten the sense of horror. One such scene is when a ghost walks slowly to a man, crouching down in an animalistic and highly unnatural way. The man hides behind a couch, thinking he's safe, when the ghost peers her head over.