Open Road Pictures has released a new trailer for writer/director Andrew Niccol’s (Gattaca, In Time) adaptation of the Stephenie Meyer sci-fi novel The Host. The story takes place in a future where a parasitic alien species is nearly finished wiping out the human population by taking over the consciousness of each person.  A soul named Wanderer is attempting to take control of Melanie Stryder’s (Saoirse Ronan) consciousness, but faces strong opposition by what remains of the girl.  This trailer finally does a swell job of explaining the film’s plot, and Niccol looks to have crafted a really cool-looking sci-fi world.  I’m still not entirely sure whether the story plays out as a romance or as more of a thriller, but I’m intrigued nonetheless.

Hit the jump to watch the new trailer. The film also stars Max Irons, Jake Abel, Diane Kruger, William Hurt, and Boyd Holbrook.  The Host opens on March 29th.

Here’s the official synopsis for The Host:

THE HOST is a riveting story about the survival of love and the human spirit in a time of war. Our world has been invaded by an unseen enemy. Humans become hosts for these invaders, their minds taken over while their bodies remain intact. Most of humanity has succumbed.