Cleverly presented and suspenseful till the end!  The shots and images as well as the sounds all contribute together to pump up the action and suspense element. No wonder this film got the nods of various award-giving bodies because it delivers with a punch!  Despite the absence of dialogue every detail was clear and well-understood! This deserves  a 5 stars and a shout-out for its writer-director Simon Hynd.  Highly recommended!