“The music by Ludvig Forssell and El Michels Affair provides suitably thumping accompaniment.” latimes.com

Soundtrack performed by El Michels Affair, an American cinematic soul group led by musician and producer Leon Michels.

Leon has worked with a who’s who of talented musicians, including a brief spell as part of Wu-Tang’s touring band, he started making music under his own steam with the express intention that it be sampled by hip-hop producers. Jay Z, Beyoncé, Travis Scott and Don Toliver all used his work for their songs.

Bill Skarsgård stars as “Boy” who vows revenge after his family is murdered by Hilda Van Der Koy (Famke Janssen), the deranged matriarch of a corrupt post-apocalyptic dynasty that left the boy orphaned, deaf and voiceless. Driven by his inner voice, one which he co-opted from his favorite childhood video game, Boy trains with a mysterious shaman (Yayan Ruhian) to become an instrument of death and is set loose on the eve of the annual culling of dissidents. Bedlam ensues as Boy commits bloody martial arts mayhem, inciting a wrath of carnage and blood-letting. As he tries to get his bearings in this delirious realm, Boy soon falls in with a desperate resistance group, all the while bickering with the apparent ghost of his rebellious little sister.