Twelve years ago, a fire at the Hengchuan Watch Factory killed seven people. Bell master Shen Yanqiu's father was found to be an arsonist, and he has lived with the reputation of "the son of a murderer" ever since.
Twelve years later, the long-stopped Hailing Bell Tower suddenly started ringing again, and an old work ticket with the name of the deceased fell out of the gear compartment. Zhou Jibai, the lawyer responsible for the bell tower demolition dispute, came to the door. He is a well-dressed man with a vicious mouth and a sinister heart. He is Shen Yanqiu's unfinished first love and the person who personally handed over key testimony back then.
The two of them removed the clock to check accounts during the day, and fought over the bed and bathroom at night. Lawyer Zhou says business is business, but his hands are always measuring Master Shen's waist, holding back wine, and untying cufflinks. Shen Yanqiu couldn't bear it anymore: "Do you need to take off your clothes to investigate the case?"
Zhou Jibai stood against the door and replied in a low voice: "You don't need it for the investigation, I do."
A rivet hidden in the clock core drags the two people back into the puzzle of old flames, perjury, work-related injury insurance fraud, and capital mergers and acquisitions. But the closer they get to the truth, the more they discover that the person who betrayed each other twelve years ago seems to be themselves.
