A 9/10 because this was extremely an eye opener for me. I've never investigated murderers, looked up police procedures or psychopaths and had never even known that they had certain behavioral patterns until this. Though, a caveat for thrill seekers -- this drama is no regular "thriller". It is more procedural and gives an indepth look into the lives of Criminal Profilers. (This might be the reason why I did not feel to rate it a 10/10.)

I am quite curious about how the original book was written because Through the Darkness is carried by the efforts of two budding criminal profilers, Song Ha Young and Captain Young Soo. Despite their intense passion for that specific line of work, they often face ridicule from their colleagues, thanks to the apprehension that follows anything new.

The entire story as a whole is told in an almost episodic format, loosely based on some of the major crimes that were headlines in South Korea. (As a matter of fact, Gu Young Chun, who was sentenced to death, is still alive and imprisoned.)

In particular, I was impressed and terrified by Song Ha Young, an introverted detective who was extremely sensitive to the emotions of everyone surrounding him. I have to say, he is hands down one of the most genuinely nice and fluffy male leads out there. We see his intense passion for his work. What was surprising to me was how I grew attached to even his own mother, who definitely has less screen time than any other characters who are working on the field. His rapport with his more extroverted colleague was one of the lighter parts of the show. I slowly began to care for both of the profilers and their family.

Captain Yoon, one of the major female characters, was introduced in a rather annoying fashion —- I grew to like her refurbished attitude as the story progressed, but I failed to understand her rude approach to the Criminal Profilers in the first place. I found the female reporter disconcerting as she had only a countable number of scenes. I wished to see more of her passion for her work.

The crimes were gruesome and the interviews were bleak —- but, as someone mentioned, we are the creators of our destiny. We choose to become who we are.

Funnily, both my mom and a friend of mine advised me in the exact same manner that Song Ha Young was admonished on episode 8 and 9.

I hope that the real authors as well as the entire cast and crew behind the scenes received extensive counselling and therapy after wrapping up. This show is not for the light hearted.