9/10 is my rating. Also known as "I Remember You" is a 2015 South Korean drama with 16, 60 minute, episodes. Profiler Lee Hyun (Seo In-guk;Park Bo-gum) after a case he receives triggers a memory he thought long buried in the past. Detective Cha-Ji-an (Jang Na-ra) has never stopped investigating Lee Hyun as she knows that his brother disappeared and his father were murdered
and that Lee Joon Young (Do Kyungsoo), a criminal, was somehow involved. Things are not quite as they seem and the tangle seems to gain twists and turns even as they unravel it.

Spoiler 🚨 I really liked this and it kept me engaged the whole way through. I am a big fan of the crime genre so this appealed to that interest of mine. I also like psychological thrillers and romances and it had all those elements. There were multiple serial killers and they really explore the nature versus nurture psychological concepts which I found very intriguing. I would have rated this even higher but the ending was just a tiny bit softer than I like it. Just being extremely picky but there were some elements that seemed as if it was being left open for additional episodes or even another season. But it ended well - just not with all aspects completely tied up. Some do not mind that at all so it will not diminish at all for those that like to have some pieces to ponder. It was very well acted as I have come to expect from the two leads. Their romance was "cute", heart warming and believable. I liked the interplay of the "team" that was built to track the killers. Parts were predictable but not in a bad way. But there were also a fair number of surprises. It is a great drama that I highly recommend.