As young children Laura Porter and her brother Henry witness their parents' brutal murder by a hooded man, whom they believe to be the Bogeyman. As an adult, Henry has attended group therapy, improving such that he is instead currently looking for work. Laura joins this group as he leaves, meeting the other members: Nyctophobia Mark, Germaphobia Paul, Self-harm Alison, Agoraphobia and commitment-averse Darren, and Nicky, a bulimic girl who fears extreme weight gain.