Eastern Promises follows and centers on the story of a London hospital's midwife Ana (Naomi Watts) who witnessed the death of a young girl in giving birth on Christmas Eve and decided to search for her family and identity. The search leads her into the core of dangers of the underground sex-trafficking business operated by the London's Russian crime community headed by Nicolai (Viggo Mortensen) who however turns out not to be what he seems. Pictures by Andy Robinson and Matt Keeble