This drama was a big surprise for me, for Korean dramas I have always watched romance dramas but because many people recommended this drama and talked so many good things about it I decided to give it a try. And I was pleasantly surprised with its story and characters. Signal is a detective/suspense drama that focuses on a newly created police department “the cold cases unit” and how its profiler suddenly finds an old seeming less useless radio (walkie talkie) but starts getting these weird transmissions from that radio. Then he discovers the transmissions come from a detective of the past, who strangely has a connection to the cold cases the unit is investigating. The profiler keeps the transmissions of the radio a secret but uses them to solve the cold cases. But soon he’ll discover there is more than meets the eye. These transmissions are only the beginning of uncovering a big conspiracy and all the secrets involved in it. It really is a well made suspense drama, the cases are well planned and they interconnect very well with the scenes form the past. Overall the stories from the past and the present are well connected, at first you get a little confused because they change from past to present from one scene to another. But all the old scenes are filmed with this sepia color that helps you identify which is which. The main 3 actors of this drama are all new to me this is the first time I’ve seen them act. They did an amazing job, their characters were well developed and all the emotions portrayed were believable. I only had a little problem with the female detective’s acting on the past, she was the exact opposite of the strong and reliable detective from the present. The only bad point for me is the paradox of changing the past and the repercussions it could have in the present, I was ok with the explanations and the way they handled it until the final episodes where I think they kind of contradict the premise they were using in the previous episodes. As many others had done I’m also recommending this drama, watch it and write your own conclusions on the cases and the time paradox. And by watching you will also wonder how can a boy eating omurice can make you cry so much!