Gallowwalkers (2012)

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A mysterious gunman, Aman, is the son of a nun who breaks her covenant with God to ensure his survival. This act brings a curse upon Aman – all those that die by his gun will return. Soon, he is hunted by a gang of his undead former victims, led by the vicious Kansa. Aman enlists Fabulos, a new young warrior, to fight by his side.