Bill Skarsg�ard stars as "Boy" who vows revenge after his family is slaughtered by Hilda Van Der Koy, the deranged matriarch of a corrupt post-apocalyptic dynasty that left the boy orphaned, deaf and mute. Driven by his inner voice, one which he chose from his favorite childhood video game, Boy trains with a mysterious shaman to become an instrument of death and is set loose on the eve of the annual culling of rebels. Chaos ensues as Boy commits...