On Halloween night in 1968, three teenagers in the small town of Mill Valley, Pennsylvania—horror-obsessed amateur writer Stella and her friends Auggie and Chuck—play a prank on school bully Tommy Milner and evade him with the help of drifter Ramon. The group decides to explore a local haunted house which belonged to the Bellows family who helped found the town. Inside they find a secret room and a book of scary stories belonging to Sarah Bellows who is not in any family photographs. Are the scary stories tell about Sarah and her stories true? Based on the children's horror story collections of the same name. Produced and co-written by Guillermo del Toro. Directed by André Øvredal (Trollhunter).