Two college seniors, Tang Xiaoqi and Luo Yi, become trapped in a relentless time loop with three others after a faulty elevator ride. As they repeatedly relive the cycle, they must unravel the mystery behind a suspicious fall and uncover a dark conspiracy linked to fake news.

The film tells a story of 2 girls who were born on the same day and unintentionally switched at birth. Their lives are completed changed due to the misplacement when they are returned to their respective families.