While trying to enjoy a peaceful Halloween with his mother Linda Garner (Monique Parent, THAT'S A WRAP), Tim is paid a visit by his rambunctious, up-for-anything friends. After reluctantly letting them inside the house he becomes intertwined with the circumstances of their Halloween prankings. One that turns out has broken a sacred tradition kept between humans and otherworldly deities known as the Aos Si. A call back to terrors birthed in the mythology, lore and atmospheric dread behind the Halloween traditions based in an ancient Celtic past.