British horror written and directed by Ben Wheatley. As a deadly virus decimates the Earth, scientist Martin Lowery (Joel Fry) is sent to a forest outside Bristol to research crops efficiency, building on work conducted by his former lover Olivia Wendle (Hayley Squires) before her recent disappearance. As he makes his way through the forest Martin and his guide, Alma (Ellora Torchia), discover evils lurking in the woods that threaten both of their lives...