It stars Pan Yueming, Wang Longzheng, Liang Yuan, Lü Xiaolin, and Yin Shuyi.

However, he has a hidden agenda, which is to clear his identical twin brother Guan Hongyu's name from the alleged murder of an entire family.

[6] Day and Night took inspiration from Insomnia, a 2002 American psychological thriller film directed by Christopher Nolan.

[6] The television series received positive reviews for its complicated and tight storyline.

[8][9] On June 16, 2017, the producers attended the 23rd Shanghai TV Festival and released a three minute trailer.