该片主要讲方家少爷方天谬具有双重人格，在正常情况下是普普通通心地善良的老百姓，但在发烧感冒时就变成一个身手了得，思维缜密的断案奇才，最终他的双重人格合体与花非花一决高下

十三娘本是山中的一个女贼，后来为了担负起家庭的责任，不得不选择利用自己聪明才智做起生意，把家业打理得井井有条，而方家大少爷方天谬，却与十三娘错过了姻缘，25岁的方天谬智商不高，天生愚钝，但却继承了他父亲的性格，经常在外面惹事。

方谬有一位指腹为婚的妻子游小情，但小情对方天谬的为人并不看好，经常想办法要退掉这门婚事，最终小青告诉天谬，如果他能当上一等巡抚，就决定嫁给他，为了证明自己的天谬，决定参加考试，后来一系列不可思议的事情发生，只要天命一生病，就能展现出超能的才华。

The film mainly talks about Fang Tianyao, the young master of the Fang family, who has a dual personality. At that time, he became a skilled and thoughtful case-solving wizard, and finally his dual personality merged with Hua Feihua in a showdown

Thirteen Niang was originally a female thief in the mountains. Later, in order to take up the responsibilities of the family, she had to choose to use her intelligence to do a Started a business and managed the family business in an orderly manner, but Fang Tianyao, the eldest son of the Fang family, missed the marriage with Shisanniang. Fang Tianyao, 25 years old, has a low IQ and is naturally dull, but he has inherited his father's personality , often causing trouble outside.

Fang Yao has a wife, You Xiaoqing, who is married with his fingertips, but Xiaoqing is not optimistic about Fang Tianyao's behavior, and often Trying to get rid of this marriage, Xiaoqing finally told Tianyao that if he could become the first-class governor, he decided to marry him. In order to prove his own, Tianyao decided to take the exam. Then a series of unbelievable things happened. As long as Tianming is sick, he can show super talent.