One of the best thriller drama I have ever watched. Chemistry between actors was great.

The way secrets and suspects were revealed one by one was a very good idea.

One murderer was revealed before the drama's mid-episode, but that didn't slow down the action. After that, there was still a lot to reveal and the drama was engaging until the very end. Most of the time, when we as viewers thought the characters couldn't keep any more secrets, new facts came out.

The first part of the drama was shot in such a way that, as viewers, we did not know who was the perpetrator and together with the characters we discovered new facts. In the last few episodes, viewers and characters already knew the perpetrators but were looking for evidence of their guilt.

There were so many sad and surprising scenes in this drama. I also really liked the cooperation and friendship between the characters.

I really love this drama. It was great.