The Grady Twins, The Shining
Each Halloween, you'll inevitably bump into a pair of friends dressed up as the Grady sisters from Stanley Kubrick's adaptation of The Shining. In the film, Jack Torrance (Jack Nicholson) suffers from writer's block. He applies to become a winter caretaker for an isolated hotel. The hotel manager tells him that the previous caretaker developed cabin fever and killed his family, including his two girls, aka the Grady sisters. Jack gets the job and brings his family up. His son Danny, gifted with "the shining," is the only person who can see the twins, who chillingly asks him to play with them.