Twelve-year-old Issac Itkin has obsessive-compulsive disorder, and he struggles with intrusive thoughts constantly. But everything changes when he's invited to join a group of friends in their after-school role-playing game, and the thoughts become a little less loud. He starts to feel less lonely, but when his grades start to slip and his therapist says that games can have negative effects on kids with OCD, Issac's overprotective mom makes him stop playing. Issac must prove that the game is doing more to help him than hurt him.