Uncle Hua, who has lived in the old street for many years, is highly respected by the neighbors and has made a living by selling antiques. "If you're in trouble, find Uncle Hua" has almost become a motto for the community. Due to real estate dealings, the old street faces forced demolition by the local Qinglong Gang. Within the walls of Uncle Hua's antique shop, six bodies, seven passports, and firearms are unexpectedly discovered, leaving everyone horrified. All of this does not escape the notice of the old street's homeless man, Old Cao. Meanwhile, Uncle Hua becomes the target of a mysterious organization led by Ah Jie. The identity of Uncle Hua remains shrouded in mystery. As everything unfolds, the situation becomes increasingly enigmatic and convoluted.