Ley Lines (Japanese: 日本黒社会 LEY LINES, Hepburn: Nihon Kuroshakai Rei Rainzu, literally "Japan Underworld: Ley Lines") is a 1999 Japanese film directed by Takashi Miike, and is the third film in his Black Society trilogy, following 1995's Shinjuku Triad Society and 1997's Rainy Dog. Like many of Miike's works, the film examines the underbelly of respectable Japanese society and the problems of assimilation faced by non-ethnically Japanese people in Japan. The English title refers to ley lines, the paranormal concept of geographic lines of energy based on the placement of landmarks.