It tells the tale of a wronged Japanese snow monkey, mentored by the ghost of an American assassin, as he cuts a wide swath through the Tokyo underworld.It tells the tale of a wronged Japanese snow monkey, mentored by the ghost of an American assassin, as he cuts a wide swath through the Tokyo underworld.It tells the tale of a wronged Japanese snow monkey, mentored by the ghost of an American assassin, as he cuts a wide swath through the Tokyo underworld.