The film takes place before and after the two Death Note films and shows Death Note fans the more human side of the legendary detective L not seen in previous entries. The story begins as L takes on the Kira case in which countless criminals are mysteriously dying of sudden heart attacks. L leaves his headquarters in Los Angeles and travels to Japan, for he believes with a 97% certainty that the killer is in Japan, and he also predicts that he may have to risk his life to solve the case. In Japan, L teams up with another young genius named Light Yagami, who is in fact Kira himself, and discovers the existence of the Death Note, a notebook belonging to a god of death; whoever s name is written in the notebook dies. L solves the case and brings justice back to the world but loses his partner Watari and only has 23 days left to live.
In the short span of time he has left, as L continues to solve unsolved cases from around the world, he receives a gift left behind by Watari a young boy with an SD card. L discovers that this boy is the sole survivor of a mysterious epidemic that hit a small village in Thailand and suspects that this epidemic is not a natural occurrence, but something man-made and evil. Around the same time, L meets Maki, a young girl looking for Watari for help. Her father, a scientist at the Infectious Disease Center of Asia, had given her the key to solving this case before he died. With Maki and the boy, L goes up against a bio-terrorist group responsible for creating a deadly virus ten times more fatal than Ebola, and as L tries to formulate an antidote with a scientist, he must also save the lives of the two children who have no one else to turn to.
Also believe it comes with an artbook!