Sulaleewan Suwanthat often played the old aunt in Thai movies.
Before her death, a grandmother gives her granddaughter a magical ring that'll give her dead spirit power over her. The spirit manifests itself when her head detaches from her body at night and flies away with guts dangling under it, seeking blood to drink or raw flesh to devour.
Srinuan is a school teacher in classroom #650. Her nephew is a young musician who never likes to go to school, so she makes him practice his musical skills at home and even adapts some of the school subjects into the lyrics of the songs. This method really helps her students improve their memories, and they all do very good in the examination.
Puchong, Jimmy and Muay are close friends. Three of them went on a trip and got lost; Muay was killed in an accident. Jimmy has gone back to the United States, and left Puchong alone by himself.