Ken'ichi Matsuyama reprises his role as L from the previous Death Note films. The film chronicles the final 23 days of L's life, as he solves one final case involving a bioterrorist group that aims to wipe out much of humanity with a virus with ten times the infectiousness of Ebola, taking a boy, the sole survivor of its use in a village in Thailand, and a junior high schooler named Maki Nikaido under his wing
