A Trans-Siberian train journey from China to Moscow becomes a thrilling chase of deception and murder when an American couple encounters a mysterious pair of fellow travelers.

What better setting than the Trans-siberian train could be used for a claustrophobic, chilling tale of trafficking and treason. An American couple sees their holiday take a different turn in this thriller starring Ben Kingsley and Emily Mortimer, in which no-one is really what they seem to be.