The movie "If I Were You" is the first domestic film work involving "body-swapping" love. The solar magnetic storm, which is rare in a thousand years, brings huge cosmic energy to the earth. The genius inventor (played by Wu Ma) comes to the world with the newly invented "love subversion umbrella". The playboy Danmin (played by Lin Zhiying) is a DJ working at Zhejiang Music FM. He longs to be a host, but he always stutters because of nervousness, and ultimately fails to fulfill his wish. Xiao Ai (played by Yao Di), who shuttles through the love field, is a wine tout. She grew up in an orphanage. She is clever and fickle. She makes a living by deceiving men and regards deception as the best weapon to protect herself. Two unrelated people met on a thunderstorm night, and happened to be exchanged with the "love subversion umbrella" and entered each other's body, so one became a pseudo-girl and the other became "Chun Ge". From the high-end business circle to the charming nightclub, from the head of the bed to the foot of the bed, this pair of misplaced men and women experienced physical and mental entanglements again and again, all kinds of ridiculous identity swaps, and all kinds of HOLD can't help but make a hundred jokes...