The Host is a 2013 American romantic sci-fi thriller film directed and adapted by Andrew Niccol[3] from Stephenie Meyer's 2008 novel of the same name. It tells the story of a young woman, Melanie, who is captured after the human race has been taken over by parasitic aliens called "Souls". After Melanie is infused with a "Soul" called "Wanderer", Melanie and the alien "Soul" vie for control of her body.