Keisuke Okuyama (Shun Oguri) works as an attorney for the Shiraishi Law Office. One day, he receives a letter from Michiko (Reiko Kataoka). She is the stepmother of burglary and murder suspect Tatsuya Ando (Tsutomu Takahashi). When Keisuke reads "... please defend your friend Tatsuya Ando as his attorney,” Keisuke begins to feel sick. His terrible past, which was buried in his mind, come back to him.

It began 17 years ago, when Keisuke befriended Tatsuya. Tatsuya is a distant relative and just moved to Keisuke's neighborhood.