This is the most intense and mind-blowing Chinese drama I have ever watched. It's almost to the point of overwhelming due to the amount of times you will experience getting mind-f-ed in almost every episode. But the last episode will make you lose it. You will be caught in a spiral of suspicion and doubt throughout this entire drama, all the way to the very last episode. The story, directing, acting and music earns an overall 9.5/10 from me. The cinematography in this drama is at another level. It's almost like you're watching a movie each week. The main and supporting characters' acting is half the reason why this drama is so great. I would have given the acting 10/10, but the actors chosen to play as Americans could have been much better. Their acting was too awkward and stiff for me to watch. The music in this drama is just perfect. The moment they start playing that familiar suspenseful and daunting background music, you know something will happen. This is a drama worth re-watching. Although it would not be as exciting because you know what to expect, so the element of surprise is gone. It's the brilliant acting that will bring viewers back. The touch of romance and humor in this drama is a great relief to all the suspense and constant plot twists you will see later on in the drama. Wallace Huo and Sandra Ma have amazing chemistry. The way they interact in the drama makes me wish that there were more romantic scenes from this pair. Also, the main genre is NOT romance, but there IS romance. Don't expect seeing some lovey-dovey action in every episode. I have seen some complaints from some viewers from the lack of romantic scenes. If you want to watch this drama just for the romance, you will be left unsatisfied for a long time.