I watched it last weekend, and had to have a stiff drink when I got to the final episode. After episodes 1 and 2, they led us to believe maybe the son was not guilty, or there was a wider conspiracy, or something. Then, they just took us on the family's emotional roller coaster as they lost their son to a poisonous ideology. It read very much like losing a child to a cult. But it's not a religion, or a communist ideology, it's something new. A new kind of brainwashing.