When a brilliant but disillusioned high school student named Light Turner, played by Nat Wolff, discovers a mysterious notebook with the power to kill anyone whose name is written in it, he seizes a godlike opportunity to cleanse the world of criminals. Guided by the notebook's original owner, a mischievous and terrifying death god voiced by Willem Dafoe, Light's vigilante crusade as "Kira" quickly captures global attention. His quest for a new world order is challenged by the enigmatic and reclusive detective known only as L, portrayed by Keith Stanfield, who is determined to unmask the killer. As Light is drawn deeper into his deadly game by the enigmatic Mia, Margaret Qualley, a high-stakes cat-and-mouse chase ensues, blurring the lines between justice and murder. Directed by Adam Wingard, this tense thriller plunges into a shadowy world of moral ambiguity, where every written name carries a deadly consequence and the greatest threat may come from the power itself.