The writers and actors did the best they could with this macabre, true-life story about Emperor Yongzheng who ascended the Qing dynasty throne after plotting against and murdering many of his brothers (and possibly his father-Emperor Kangxi).

I cannot state enough how this story will break your heart. So many deaths, so many betrayals...and for what? Yongzheng barely made it through 15yrs on the throne before he himself was eventually poisoned. The biggest irony is that he killed hundreds of thousands because of his paranoia yet ended up being killed by the one person who slept next to him. Props to whoever that woman was cos she did the whole world a great service.

The only good thing Yongzheng ever did was to sire Hongli, the Qianlong Emperor, who reigned for 60 years and is considered one of China's most successful monarchs.
That said, I did wonder whether Hongli's success was inadvertently made possible because his father had killed off his potential detractors. I mean, there was literally no one left except for some obscure uncles...even Hongli's half-brothers were put to death at a young age. I would recommend watching Story of Yanxi Palace if you don't mind a romanticized retelling of the Qianlong Emperor's harem.