People are not fair at birth. Some people are well-clothed and well-fed, while others carry forward with heavy burdens. Two strangers who passed by each other, one is troubled by dreams, the other is running for livelihood, if their lives are exchanged, what kind of chemical reaction will happen? The ordinary Lotte courier delivery staff transformed into the creative director of a new live broadcast company. The gentle and timid chef at the small dining table changed his apron and became a dignified and prudent cutting-edge professional woman. The proud girl from the milk tea shop walked out of the shop and turned into a popular blogger with millions of fans. ... An eight-hour live show of "Exchanging Lives" shows not only the collision of people from different worlds and different identities, but also involves murder escapes, shopping mall wars, and the past events of wealthy families... Ordinary people with such a life, where will they go in the end? Or, exchanging lives, the test is only the humanity of each person...