it is a good political/espionage thriller, based on a real kidnapping incident of Korean politician, Kim Dae-Jun. it covers a lot of sensitive issues in japan and korea - tension between korea and japan after WW2, feelings of japanese-korean, political movements in 70s (red purge), and most importantly, identity problem of JSDF (Japan Self Defence Force). if you like Oshii Mamoru films like Akai Megane, you will enjoy it a lot.

another thing i noted was that the picture is carefully trying to recreate landscapes in 70s. it is rather difficult thing to do as a lot of landscape changed in tokyo. i was amazed to see lots of vehicles from 70s. kudos to art direction guys!