Watch Online Free FlixHQ. Writer/director Joseph Vrenick presents the ultimate Grindhouse experience in about 15 minutes. Starting with a fake trailer for a fake movie Blood Oaks, followed by the featured short, Sex Demon. A movie about a young couple's big night being rudely interrupted by demonic possession and the only person who can get rid of the demon is the wannabe punk kid with a convention bought spell book that turns out to be the real deal.