A disgraced former cop searches for his missing teenage daughter, and discovers her twisted secret life, full of drugs, gangsters and troubling relationships. Tetsuya Nakashima’s nonlinear drama is a two-hour descent into violence, perversion, horror and amorality. It’s got some style, at times suggesting graphic novels or various dream states, with some of the more disturbing scenes set to bouncy pop music. But it’s unrelentingly grim and despairing of people and of “decent” institutions (police, family, school, friends), relieved only by the occasional moment of dark humor.