Han Shuo, an escape room prop master, is suddenly targeted by a malicious extortion scheme. A customer named Wang Yao, with his arm wrapped in bandages, falsely accuses one of the mechanisms of crushing his bones. Meanwhile, the shopping mall management issues an ultimatum demanding that Han Shuo close his business by a set deadline. Determined to protect the work of his heart and clear his name, Han Shuo teams up with his partner Amy and a special inspection expert. Together, they meticulously investigate the mechanism's tiny gear grooves and release thresholds, searching for conclusive evidence that its components were deliberately tampered with. Facing a cunning frame-up and mounting public pressure, can Han Shuo prove his innocence through rigorous mechanical engineering and irrefutable evidence, and completely shatter this extortion conspiracy?