Aspiring singer Wendy hops on a plane to Tokyo with dreams of making it big in the music business. She soon finds romance with Hiro, a rock 'n' roll musician who convinces her to become the lead singer in his band.
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 achieving.