"Doctor Sleep" is a novel by Stephen King that serves as a sequel to his earlier work, The Shining. The story follows Danny Torrance, the young boy from the original book, now an adult struggling with addiction and the trauma of his past. He possesses psychic abilities known as "the shining," which he uses to help terminally ill patients find peace in their final moments. As Danny tries to rebuild his life, he encounters a group called the True Knot, who feed on the life force of children with similar abilities. The narrative explores themes of recovery, the impact of childhood trauma, and the battle between good and evil, culminating in a confrontation that tests Danny's strength and resolve.