It's hard to forget, when they kill your father right under your nose. And it's harder because you're a 13-year-old girl and you lost your mother a year before.  It's much easier to keep the killer’s face embedded in your memory. And to live every day with a single desire: revenge.

It's for this reason - your revenge - that after ten years it seems normal to become a mule, to swallow balloons of cocaine and carry them over land and sea, from Istanbul to Peking.  It's all part of the bargain, the price you have to pay in order to find yourself face to face with Zhu, the drug lord who wiped out your father. To get your just deserts, you are not afraid of traveling thousands of kilometres in little more than a week without being able to eat anything. You are not frightened of risking a horrific death if one of those coke-filled condoms explodes in your stomach. You're not even scared off by the prospect of years of jail if the Turkish, Russian or Chinese cops were to discover what you're carrying inside of you. As long as you can savour the moment when you shoot Zhu between his eyes, you're ready for anything. Even if you are certain that killing Zhu is the last thing you'll do in your life. The fact that someone is trying to kill you and the other mules so that they can seize your haul becomes a risk like any other - it's part of the bargain. What’s not part of the bargain is that Egor, the Russian mule with whom you're forced to share most of your journey, starts to become special for you. You won't discover his true identity until the very end. But above all what's not part of the bargain is the encounter with Ana, the 12-year-old girl who's with Will, the fake mule and leader of the gang that is chasing you and the other couriers down. He travels with Ana, from Istanbul to Peking, so as not to not rouse suspicions. And maybe for other reasons, as well.

From the moment you see Ana you understand that her sombre look and her distant expression are characteristics of someone who has experienced a childhood squashed by a terrible secret, of someone who lives in constant fear. And from that first time you understand that you have to help her out because she is everything you were years before.  In all this, travelling by ferry, coach, car, train, from Turkey to China, you cross a world populated by ruthless killers, corrupt cops,  skinheads and desperadoes ready to kill for a song. And it's at this point that you waver and you're seized by the fear that you're not hard enough or ready enough to take your revenge. In Bejing, when you and Egor manage to defeat Will's gang, finding the entire parcel of the coke and tearing Ana away from her fate, you can no longer escape from your suspicions, your doubts, your fears. Avenging yourself of Zhu, obtaining what you have always wished for these past 10 years, means almost certainly losing Egor forever, giving up on Ana, and denying her the chance to have someone nearby who wants to take care of her, who is ready to protect her. Is revenge really what you want, what you need? With this question swirling in your head you look into Egor's eyes and you hand him the drink that will knock him out. Then you glance one last time at Ana fast asleep and you slip out of the hotel room. You have an appointment with Zhu.