After being enticed to kill a bully by Ryuk, Light murders the criminal who killed his mother. Along with Mia Sutton, his classmate and love interest, Light begins a crusade similar to his manga counterpart to rid the world of crime. However the pair eventually come to a disagreement on how they should deal with law enforcement targeting them, including L and Light's father James. After Mia kills Watari, L's handler, she schemes to steal the notebook from Light, but Light outmaneuvers her and kills her and concocts an elaborate plan through the Death Note, by manipulating a number of criminals to continue his activities as "Kira" through the notebook, before all of them commit suicide and induces himself into a medical coma for around a month, which seemingly proves Light's innocence to the authorities. At the end of the film, James presents Light with evidence that he killed his mother's murderer and Light confesses to being Kira and reveals how he cleared himself of suspicion. Meanwhile, L, disgraced by his superiors due to failing to implicate Light and seeking to avenge Watari, considers killing Light with a hidden piece of the notebook he finds in Mia's room. The film ends, as Ryuk laughs to a bed-ridden Light and comments that "humans are so interesting".