"It is another peaceful day in Tokyo. But beneath the surface, a terrorist plot is simmering which could uproot the very foundations of Japan. It all starts in Roppongi where disturbing activities of high-level bureaucrats seem to go unnoticed by the Public Safety Commission. The terrorists begin to close in on Kaoru Inoue (Junichi Okada) a Security Police officer in the #4 Security Section. Meanwhile, Inoue's boss, Soichiro Ogata (Shinichi Tsutsumi) appears to be plotting with the bureaucrats. What are his true intentions? The two confront each other in a plaza where a tragic event took place twenty years previously."
Quoting the synopsis from the 2010 Tokyo International Film Festival site.