The host

When Melanie, one of the last "wild" humans left on Earth, is captured, she is assigned to become the host of a spirit called Wanderer. As Wanderer probes Melanie's memories to reveal the location of the human resistance, Melanie shows the spirit visions of the man she loves, and soon, Wanderer can't help but fall in love with him too. The pair eventually becomes unwilling allies and they set off in search of the man they both love.