It all begins when Iris and Aron decides to go and spend the weekend in her mother's house. Accidentally she finds out the existing of something that is close to her. She decides to follow all the clues, but what she gets is unbelievable truth. That's not the end, but seeks the accurate explanation for that which drags her into the series of life-threatening scenarios. Can it be exposed and who are all going to affect by this is told in an exhilarating manner.
What may go to happen is what everyone thinks about once the story of puzzle takes its part. As a mystery theme it kept those elements subsequently introducing limited characters that come in now and then to warn the main character as well to enthrall the viewers. I figured it out so early one of the two twists and expect most of people with experience in watching mystery movies will do the same. That is not a let down because the rest of the story creates enough grip to hold firmly on the audience interest.
King Kong, Hannibal, Maria, Peanut, Frangois,
Chili, Saturn, Raisin, Margie. 
I usually see plenty of movies about autistic father and a 8 year old daughter or son in Korean movies. That is so frequent if you are familiar with them movies. In fact, I expected similar style of storytelling from this, but what I got was so much fresh and fascinating narration with cool screenplay. Feels like reading a novel except it comes with motion pictures. I have not seen tons of Dutch movie in my life, but a few in that it is one of the best for sure. I believe you should try this before in case Hollywood grab for a remake rights.
8/10