Brilliant but bored high school student Light Yagami suddenly finds himself holding the power of life and death in his hands—the power of the Death Note. He decides to rid the world of evil—by killing off criminals one by one. When the murders start to pile up, genius detective L is on the case, and an epic battle of wits unfolds.

After fifty days of confinement the killings continue, and Misa and Light are released. But L has devised a plan to ensure no more murders occur, and has Light's father, Soichiro, take the two for a ride that may be their last.

Though L is still suspicious, Light and Misa, their memories of being Kira wiped clean, return to headquarters, where Light notices a strange connection between the recent Kira killings and the Yotsuba Group.

Matsuda, the task force member assigned to watch Misa, is eager to distinguish himself, and while on a job with Misa, he decides to do a little snooping on his own at the Yotsuba Group’s Tokyo headquarters.