The film begins with Cahit attempting to destroy his life; we see that he drinks to press the pain down, but he remains violently angry. His pain causes him to drive head-on into a wall in an attempt to take his life. He cannot see how his life matters. Upon a visit with a psychologist he is told if he wants to die, then die to himself--leave his life behind and come alive for another person, go to Africa and help starving children--but, don't throw it away.
This is a critical point because Cahit then meets Sibel who desperately needs help, to the degree that is Cahit doesn't marry her she will commit suicide. He chooses to marry her, in order to make an attempt to do what the doctor told him--to help another. This, though turns into even more brutality upon his heart and soul as he knows what a great marriage looks and feels like. He lost this, and now that he is married to Sibel he sees that he needs something more from this relationship. So, to watch her sleep with other men over and over kills him more than he'd ever of imagined.
The journey forces a split between Sibel and Cahit that causes her to flee to her sister, and leaves him in prison after killing one of Sibel's lovers. The chaos of their lives come to a head in these moments and they are violently forced to evaluate their lives from different types of prison cells. And upon release from serving time for murdering Sibel's lover, Cahit and Sibel reunite for two nights of passion. But, they are not meant to be as the definition of happiness has changed completely for Sibel, it includes her new husband and her little girl. And, Cahit is left alone on a bus to his home town, a place he has not been in years. Symbolically meaning that they are finally heading to the "home" they've desired, which was buried beneath pain, sorrow, the clash of their culture and beliefs.