There is no motivation attributed to the antagonist other than 'he is a spawn of demon'. His past in a oppressive system could be taken into account. His father perhaps? But nah. 'He did it because he can' is the best they came up with. And a hint about his reproductive organ. Groundbreaking.
There is no female character in the whole movie and the very few female "characters" exist without any lines other than begging for their lives. They as mere tools for the antagonist to display his cruelness. Most of the scenes with cruelty were unnecessary considering what the audience gathered so far against the character of the antagonist. It is so much that it is hard to not question the motive of the director.
Also some of the scenes of protagonist come off as complete bs. Totally realistic scenes are not what one looks for in action movies but when they are also unimaginative, it leaves a bad taste. Police force ganging up on national intelligence like they are a bunch of street thugs? Really?
This is a power/revenge fantasy movie that is catered for male audience and it doesnt require for much critical thinking. On the contrary, you need to turn it off to enjoy it.