Three years ago, Lydia and Alena were two hopeful girls from Lithuania. Now they are sex slaves, lured to Sweden with the promise of better jobs and then trapped in a Stockholm brothel. Suddenly they are given an unexpected chance at freedom and with it the opportunity to take revenge on their enslavers and reclaim the lives and dignity they once had. What will happen now that the tables are turned and the victims fight back?Box 21 is a mind-blowing psychological thriller of the highest order.