This night, window cleaners Cheng and Sen are unexpectedly trapped 400 meters high on the exterior of a skyscraper, waiting for rescue. Meanwhile, a fearless thrill-seeking influencer is climbing on the skyscraper with bare hands. In this bizarre moment, the three crossed paths. Unnoticed by anyone below, the trio faced a life-and-death ordeal, each grappling with their own challenges and decisions. Cheng, the protagonist, had to reclaim his confidence and rediscover his past skills to save his companions and ensure they all escaped alive.