A soba restaurant owner dies mysteriously on D. Street. The police rule it as a suicide, but detective Akechi Kogoro and his wife Fumiyo think otherwise and launch their own investigation. As they delve deeper, they discover relationships twisted by perverted desire and hideous affection and hatred.

Two security guards — one from Beijing, one from Taipei — are forced to work together to track down a legendary Chinese painting that has been stolen by international art thieves