许愿(夏雨饰),北京潘家园小古董店"四悔斋〃的老板,古董鉴宝界最具权威的"五脉梅花"家族之一许家,唯一的传人。为了楸出隐藏在五脉之中的〃老朝奉〃造假势力,许愿孤身一人入局破局,与 庞大的古董造假集团展开层层较量,却被设局指引牵扯出两幅《清明上河图》真赝难辨的惊天秘密。随着迷局的层层解开,境外神秘的造假势力也浮出水面,而这些竟然都与当年许愿爷爷的护宝冤案有着千丝万缕的关系。为了查出前世真相,许愿再度联手投靠于"老朝奉"的药不然(魏晨饰),但不曾想这所有的一切都尽在老朝奉的掌握之中,而老朝奉势力的背后还藏着更大的谜团。 赝品迷局环环相扣,两幅《清明上河图》真赝难辨,亦正亦邪的药不然又是背负着怎样的使命,五脉前世恩怨纠葛最终如何解答,而幕后BOSS "老朝奉"究竟是谁,这一切谜中谜的答案都隐藏在早已布好的局中局里。Xu Yuan is invited by the antique circle again to resolve the dispute on authenticity of two copies of famous Chinese painting Qingming Shang He Tu. After the event, he keeps on finding lost precious chinawares made from the famous emperor Chai's kiln and finds out the lord of antique counterfeiter Lao Chao Feng.