The Host Film Tie InMelanie Stryder refuses to fade away. The earth has been invaded by a species that takes over the minds of their human hosts while leaving their bodies intact, and most of humanity has succumbed. The Host introduces Wanderer, the invading 'soul' who has been given Melanie's body. Wanderer knew about the challenges of living inside a human: the overwhelming emotions, the too vivid memories. But there was one difficulty Wanderer didn't expect: the