<p>On an overnight train to Innsbruck, ex-lovers Richard and Frances meet each other by chance many years after their mysterious separation on a train journey through the blistering heat and vast empty expanses of the Sudanese desert. As they each tell their separate stories of fear, confusion and loss, they try to unravel the truth of what happened - and confront the bitter possibility that one of them may be lying. As their train hurtles throug...