Overall impression + spoilers + my ideas to improve the story

Rating: 7/10 (30 October 2016)

Great idea but a weak realization. The story has strength and depth and, if it was made by the book, the book probably kicks ass, but the movie left me indifferent. I cannot say what is the issue, if it is acting or directing or music or what... but until just a few minutes before the end I had absolutely no emotions towards what I was watching and I was bored. For the idea and the very end of the movie... 9/10, but the overall impression is about 5/10.
!!! SPOILER ALERT !!!
Christian girl gets involved with a Muslim refugee and gets pregnant. Christian police kill the Muslim and her child is taken away at birth and sent to an orphanage. Many years later she gets revenge for the tragedy of her youth by killing the leader of Christian police. She ends up in prison where she is raped by the cruelest guard. She gets pregnant again and gives birth to twins. After she is released from prison, she takes her children to Canada.
After she died her testament sends her children in a quest to find their father and brother and deliver letters from her. The daughter goes to search for the father and the son searches for the brother and they both find the same person.
The orphanage was destroyed in the war and the child was adopted by attackers and trained to be a killing machine. He ends up as a prison guard where he rapes a female prisoner, not knowing it was his mother.
Twins first get to know that their father is not killed in the war, as they were told. They find out that they are a result of their mother being raped in prison while she was serving sentence for murder. Then as icing on the cake, they find out that she was raped by the long lost son. So, in adult age, you find out that your whole life was a lie. Your mother is a murderer, you are a rape child, the rapist is your older brother, and you are just a side effect of sadistic, incestuous rape, and now you are expected to continue with your life as a mentally stable person... yea, right, like it is possible...
So, I would like to improve this already sick movie by adding some epilogue to it:
a) Father/brother receives both letters and, when his brain finally realizes shocking truth, he drops letters on the floor and jumps through the window (shoot himself in the head), while twins end up in a closed section of a sanitarium.
or, for those who root for a happy ending...
b) Twins cry in embranchment, which ends up "horizontally", and father/brother accepts his newfound family and joyfully awaits the birth of his grandchild/nephew and they lived happily ever after.
P.S. Yup, I know, I'm sick.
7/10