I've been reading some other reviews where people claim this show has poor acting or it loses the plot half way through. Everyone is allowed to have their own opinion, so I'll share mine. This show to me was absolutely perfect. They could not have chosen a more perfect cast, both leads and all the supporting characters felt important and special and each actor did a fantastic job. This show holds so many beautiful and complex moments that left me emotional and provoked deep thought and insight. I believe this show is more than worth your time and I couldn't be happier that I found it. The ending scene parallels the beginning in such a beautiful way, I've never seen a better ending for a K-Drama. I hope you truly give this show a chance because the mystery and romance are executed wonderfully in my opinion. 10/10 no question.