There are two instances where strong and crude Hokkien expletives are used.

The film contains several sequences where the depiction of horror is realistic, intense and prolonged.

These include one where a man feasts on different dishes on the dining table which consist of worms and bugs of all kinds; a scene where a woman wakes up in bed only to realize her lower body is immersed in a pool of blood; and a prolonged sequence where the female protagonist is terrorized by various ghosts in the dark forest.

The film is based on an urban legend in Taiwan about a little girl in red who lures humans into the mountains by exploiting their greed or feelings of guilt, where these victims meet with mishap. It revolves around the protagonist whose boyfriend and his grandmother disappear suddenly. She sets out to unravel the mystery behind the sudden disappearance.