Anna, a midwife at a North London hospital, finds the diary of a Russian teenager who dies giving birth to a baby, and resolves to find the young girls' relatives in the hopes of providing the orphaned child with a loving family. As Anna follows the clues the diary provides, she finds evidence of a local Russian mob's criminal activities, and meets Nikolai, a formidable mob enforcer. Anna and Nikolai find themselves growing close as the Russian mobsters behind the girl's death become aware of Anna's discoveries regarding their crimes.