Ichi the Killer 2001
Directed by Takashi Miike | Starring: Tadanobu Asano, Nao Ômori, Shinya Tsukamoto, SABU
As sadomasochistic yakuza enforcer Kakihara searches for his missing boss he comes across Ichi, a repressed and psychotic killer who may be able to inflict levels of pain that Kakihara has only dreamed of.