John's eyes were manufactured with the purpose of providing sight to those who have lost it. Equipped with the ability to learn, the eyes develop a sense of responsibility for ensuring John's happiness. John's eyes strive to please and, with the power to enhance everything he sees, they soon realise that they are also able to manipulate what he sees. With a skewed sense of emotional intelligence, combined with unquestioning loyalty to their master, the actions of John's eyes lead to devastating consequences.