Lidia, a young waitress from Romania, is lured to Sweden and trafficked into forced prostitution. Police officers Ewert and Anni Grens are expecting their first child, but their happiness is dramatically cut short.
Following a brutal assault on Lidia, young police officer Mariana Hermansson is determined to find the people responsible. Ewert receives devastating news about Anni's medical condition, while Jochum is released from prison.