Zhang Wange (played by He Hongshan) was framed and tortured. After his death, he accidentally returned three years ago. Zhang Wange returned with memories of his previous life and approached the captain of the police station Lu Ye (played by Xie Binbin) to explore the truth. At the same time, Lu Ye's dream kept guiding her clues. When the fog in the dream was pushed away, Lu Ye was willing to hold the truth and fell into it.When the bullet in the dream passes through two hearts, one stops in the past, the other jumps into the future...