[1] Detective He Yuanhang (Pan Yueming) and his apprentice Ran Fangxu (Dylan Wang) investigate the mysterious disappearance of a father and daughter from the Xu family.

Almost a decade later, He Yuanhang's daughter, He Xiaole (Ren Min), now a police officer, discovers a connection between past events and the Xu family case.

Together with her father, they reopen the investigation and, on the eve of the complex's demolition, finally uncover the true culprit and bring them to justice.

[2] Filming for the Youku crime television series began in March 2024 in Kunming, Yunnan.

The concept poster, released on the first day of filming, featured cryptic elements like a dress, heels, and a glowing 18th-floor lift button, with details signaling a plot spanning 1997 to 2015.