It is produced by iQiyi, and stars actors Li Xian, Zhang Ming'en, Wang Zixuan and Chen Yumi.

Set in the 1920s Republican era, flooding ravages the land of Tianjin and conjures up numerous strange tales about the river.

He ends up being suspected for the murder of a distinguished chairman, whose son Ding Mao, a trained forensic investigator, joins forces with him to uncover the truth.

With their female partners - Gu Ying, the daughter of a sorceress and Deyou's childhood friend, and Xiao Lan-lan, a journalist, whose father is a rich local businessman - they begin an investigation that leads them to an incident twenty years ago, and a cult whose presence is still affecting the city in increasingly sinister ways.

[8] It also received positive reviews for its faithful and skillful adaptation from a novel, by successfully keeping the "essence" of the original novel while also leveraging its content and characters.