A man drags his leg as he leaves a bar and walks into a dark alley. He hears the footsteps of someone following him, and turns to see a gunman. He is shot between the eyes and dies at the scene. Detective Ishikawa and his partner are on the way to the scene when the bullet in his brain comes up in conversation. At the scene, the team learns that the victim was in the organized crime unit until he injured his knee. Since then, he's been on paid leave, and wasn't working on any cases. Det. Ishikawa sees him, but wary of being observed "talking to the air," heads back for the autopsy. The victim appears at the autopsy session, but Ishikawa doesn't talk to him. At headquarters, the similarity between this and a previous shooting come up, especially since the former and current police officers were in the organized crime unit. Do these two murders have something in common? Will Det. Ishikawa's chronic injury force medical intervention?