Watch Online Free FlixHQ. After stumbling upon the graves of three murdered trick or treaters, a small town paperboy discovers a series of handwritten horror stories tacked to the children's headstones. Penned by a deranged pulp author driven mad by his craft, the stories chronicle grisly tales of Halloween rites, rituals and traditions. Absent of dialogue and heavy on atmosphere, 3 Dead Trick or Treaters is a horror anthology unlike any you've seen before.