Gu Chenzhou went to a mountain village in Yunnan to support education, and unexpectedly discovered a woman whose appearance was completely identical to his wife's. At home, his wife was gentle and proper; the woman in the mountains was covered in scars and her consciousness was chaotic. The truth revealed that the two were twins, and younger sister Lin Zhiqiu had usurped her life, family, and career after a car accident. Struggling between guilt and lies, Gu Chenzhou unmasked the disguise, helped his sister who had suffered countless hardships heal her trauma, and took back everything. After learning the truth about how her older sister had risked her life to protect her back then, Lin Zhiqiu came to her senses and walked far away to another place, and the family completed their redemption and reunion.