Pros - Great acting, Past main character ( will butcher the names so ) was the best part of the show. Cons - Main character is not that smart. He does not use the transmissions to it's full potential. Could have changed a lot things but he chooses not to and the show does not provide any good explanations on why he would not do anything worthwhile in the whole show ( don't wanna spoil). The cases were very predictable and the only reason criminals didn't get caught is because every other cop other than the main characters are either corrupt or incompetent. The criminals themselves do things that don't make sense. They are smart enough to avoid getting caught for many years but get caught in the end because of something very stupid that nobody would ever do. One thing that pulled me out of the show was that the criminals or victims in the cold cases don't look any different or their lives changed in any way. At the very least, characters who were 30 in the past should have some white hair or their careers or others part of their lives changed in 20 years. Everybody seems to have just been doing the same thing for over 15 years. Nobody moves on or do anything else(ex. photographer). conclusion - I went in to the show expecting good storytelling, exciting cases and changes with time. I was expecting the characters to use the transmissions more effectively and do something that changes the time or character development. They used the transmission like around 6 times during the whole show. I am not seeing what everybody loves about this show. The only thing I got from this show is great acting, good cinematography, great scenes and bad plot.