As primary school teacher Karen Crawshaw takes on new pupil Eleanor Stagg, a man spends his days watching the children at the gates to the school. With the sense of peace at the school now threatened, Karen attempts to understand the man's strange attraction to Eleanor, all the while coming to terms with the bizarre behaviour of the headmaster – Paul Bolton.
In a chilling climax, Karen discovers that the true evil had been much closer to home, and the man was not as he seemed.
The film hopes to regenerate interest in the horror/monster genre through combining metaphorical parallels between a common evil within society - paedophilia - and a traditional creature of nightmares. Using this, the film explores both adult and child fears.