Just a young man, sick, and with no memory. They call him 'the John Doe.' But then he shows a power they do not understand. He cannot be allowed free, not when they don't know who he is, and especially, not when they don't know what he is. But John is human, and he wants to go home. He may not remember his home, he may not even know whether he has a home, but still, he wants to go home.