This is probably the best well done crime mystery Korean drama ever. From the beginning till the end. And probably one of the fewest dramas that actually gets better and better by each episode and not the other way around which is the case with more than 93% of dramas. Personally I loved it from the first episode and was invested by each week more and more until I didn't have what to invest no more cause drama just captured and took my whole heart and soul somewhere in the middle. What is the most important thing about this drama and from my point of view are its characters and their development. Considering it was announced to be more like thriller, murders, real crimes and more in style of OCN, I honestly didn't expect that human and touching side. But that's the real thing and the biggest advantage of Signal. It managed to affect us, to emotionally put us on hardest tests, to break our hearts over and over again and leave us with so many life lessons and deepness that it'll take a while till we get back to normal. ;) I loved the main story and plot yet it was nothing authentic or unique; I loved the settings, colours and atmosphere of this drama yet I've seen much darker and similar dramas from that aspect; I loved how they solved the cases and by each episode something new and unknown appears and yet I've seen something similar too. But all that which was good and well done with characters like these, that I still haven't seen and that comes from someone who watched over 700 dramas. :P Three main characters were..I'm thinking which word to use to describe those characters and actors who portrayed them. I'd say PERFECT. LITERALLY. That word came to my mind cause nothing less simply can not tell how outstanding they were. First of all characters- I loved all three of them in a different way but equally. Little by little they crawled under my skin, engraved in my heart and soul and occupied my mind for a lifetime. Cha Soo Hyun with her past self- so heartwarming, clumsy, brave, naive and so cute and present self- so tortured, devastated, cold and never giving up in search for detective Lee; Park Hae Yeong who was till the end the same guy who wanted the truth, justice, solving murders and finding culprits and giving the bad guys what they deserve, I find him so pitiful cause he felt guilty for everything that happened and you could see how that guilt was tearing him apart, he tore me apart too, I felt every single one of his emotions, his anger, his grief, his disappointment, his determination to save those closed to him; and Detective Lee Jae Han- I think this teddy bear has captured so many women's heart all over the world. I mean it would be weird if he hasn't won cause man is the best and most admirable detective ever written in history of dramaland, the one who went till the end for the price of losing his own life, the one who never wanted to give up, the one who fought against the most powerful ones in the country, the one who believed in justice and truth, the one who never lost hope, even when he maybe looked that way, he still was moving forward. I could never describe him close enough cause his actions, his mind and heart have to be seen and experienced, Jae Han is simply a man with only virtues and with one big huge good heart. I loved his dorky side, his clumsiness in romantic development, his relationship and interactions with Soo Hyun, his ultimate bromance and powerful bond with Hae Yeong, I simply fell too much in love with those three people. And the actors, how they portrayed their roles it was terrific and incredible. I truly didn't think that they'll bring so many tears to appear in my eyes, so many heart- wrenching emotions, so many strong feelings of sadness, laughing, grief, devastation, desire to just see them alive and fine in the end. Kim Hye Soo, a wonderful and beautiful actress who made her character to come to life, who gave fully enjoyable performance and who in last couple of episode killed me with her raw, honest deepest feelings; Lee Je Hoon, the one whom I loved from way before and here he only confirmed why I love him that much, his natural way of acting, his unique voice, his beautiful profile and nose (I had to mention that too :P), beside him Hae Yeong was a real person whom I could easily meet on the street, he did an amazing and fantastic job in portraying his character, he ripped my soul few times in drama for sure; And veteran brilliant actor Jo Jin Woong who previously won me as Moo Hyul in TWDR, well I can say with certainty that his performance definitely made me like this, that I won't be able to watch some new drama with same excitement as before, I cried, I yelled, I laughed, I wanted to kill those bastards who tried to hurt him and I died, all of these states and conditions I've passed and experienced only because of him and his portrayal of Detective Lee, magnificent and poignant portrayal indeed. ? Music was the second best thing here alongside the actors. Actually music was one of those best things cause everything was actually so great about this drama. I'm a real music fan and music is very very important to me and truthfully Signal has the best OST ever. (beside ost's from some historical dramas), Kim Yuna's The Road climbed to my top songs and it captured me and imprinted in my soul like no other song, I find it very heartbreaking, emotional, full of pure feelings with such nostalgic and melancholic vibes, so beautiful. There were some minor things that bothered me and stopped me from giving a 10 (like walkie-talkie, explanation about the very end and why detective Lee done what he's done in the end, too much of coincidences..) but really those weren't things that were huge and some big flaws, just something that came to my mind. The best thing is the script and how amazingly writers didn't mess up the story and they explained all so well, I didn't have any confusion or some big questions, so remarkable. What else is there to say about Signal? I already told even more but just couldn't write less, that is how much this drama effected me and how much this drama means to me. Most certainly the best drama of 2016., the best Korean crime drama and one of the very best dramas from Asia. I won't ever forget this drama, its characters, actors who played them, music and I don't think in the near future some similar drama to this one will appear. Nor I want that. I want for this one to be unique, original and the one who will have that special place inside of my heart that no other drama could ever take it. Just watch it. Watch it and see it for yourself, see why all of us think this is a wonderful drama despite how someone will rate it 8,9 or 10, the bottom line is that we all loved it. And it was worth it.