I have serious reservations about Chinese dramas, most of them have plot flaws, caricatured performances, and clearly the low budget is evident. However, "The Double" is an exceptional case where everything worked well, from the casting of the cast to the quality of set design, costumes, makeup, and landscapes, that is, YOUKU believed in the project and invested financial and intellectual resources for the drama to work and conquer not only the Chinese audience but also the Western one.
About the drama, I realize that the villains had a lamentable life due to their own weaknesses, as well as the weaknesses and bad character of those around them. I found the final scenes very delicate, coherent, and subliminal.