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.

While the world’s criminals continue to drop dead, L meets by computer with representatives from various nations. He requests that a task force be set up in Japan, under the direction of none other than Soichiro Yagami, Light’s father.

Ryuk, the Shinigami, or god of death, who dropped the Death Note into the human world, warns Light that someone is on his trail. Light is troubled that he can’t find out the identity of his tracker, and Ryuk suggests an amazing deal...

Soichiro Yagami demands to meet with L in person when he finds out that L has secretly brought FBI agents into Japan. Light, meanwhile, has found a way to get those very FBI agents off the case—permanently...

Light meets a woman at the Police Department with an urgent message for the Kira task force. As son of the chief investigator, Light listens to her story, and is startled to discover she may have information that could lead to his arrest.

L insists on setting up bugs and cameras in the homes of Chief Yagami and Deputy Director Kitamura—whom Raye Penber was tracking. But Light is a step ahead as usual—he knows he’s being watched.

The murders continue, and L grows suspicious of Light’s too-perfect behavior and decides to investigate him on his own. In order to get closer to Light, L enrolls at the same university and reveals himself to be L.

L's suspicion of Light deepens, compelling him to invite Light into the investigation. But then a phone call alerts them that Soichiro Yagami has suffered a heart attack!

As predicted on the tapes sent to Sakura TV, news anchors and commentators who expressed doubt about Kira die one by one. On further investigation, L concludes that this Kira is not the original—there's a second Kira!

Light goes to Aoyama to discover the identity of the second Kira before L becomes more suspicious. But Misa Amane, the new Kira, uses her unusual gift to find Light before he finds her.

Light and Misa show each other their Death Notes, and Light asks Misa to have her shinigami Rem get rid of L. But Misa asks something of Light in return—to fall in love with her!