胡闲自称为大侦探，虽办案皆失败但仍想记录经历。他开业后雇了助手夏协和门卫皮老虎。陆淡如因妹妹婚礼饰品失窃求助，胡闲怀疑金一清，金一清让胡闲帮忙带包裹...

Hu Xian calls himself a great detective. Although he has failed in all cases, he still wants to record his experiences. After opening his business, he hired an assistant, Xia Xie, and a janitor, Pi Laohu. Lu Danru asked for help because the wedding ornaments of her younger sister were stolen. Hu Xian suspected Jin Yiqing. Jin Yiqing asked Hu Xian to help carry a package...