Zhong Kui (in English subtitles referred to as "Chung") is a god of the otherworld that battles ghosts. His sister by chance meets a rather confused man named Simon which she instantly falls in love with and demands will marry. However, to do so she and her brother Chung will need to come to Earth and deal with humans. After finding him, she discovers that he is not all that much interested in her, but they have less than 3 days before he dies. The film is a modern take on Chinese Mythos of Zhong Kui and while this film has nothing to do with "Ghostbusters".