Shuichi is engaged to Sanae and they will marry soon. One day, Shuichi is driving a car and his friend Teru sits as a passenger. He is speeding because he is late for a meeting about his upcoming wedding ceremony. On the way there, he hits a woman and flees. The woman dies later and her parents Hikaru and Chizuko Tokiyama are grief stricken. Veteran detective Kozaburo Yanagi and rookie detective Shun Maeda investigate the hit-and-run case.
In the desert of Egypt, Kurata, the CEO of the Japanese corporation Tokokaihatsu, is killed by a sniper. After the news reaches Japan, the CEO's lawyer, Yamamoto, receives a visit from two men that attempt to steal the deceased CEO's will. This is witnessed by two detectives, Tsuzuki and Ōnuki, but they fail to catch the perps. Yamamoto hands the detectives a set of keys before he stops breathing. Tsuzuki and Ōnuki now have to investigate Kurata's murder...
