Seven years ago, the failure of the "White Night Case" caused criminal profiler Lin Yan to bury his talent with his own hands. Seven years later, a ritual murder that imitated an old case drove cold rivets and thorny roses back into her world.
The partner sent by the police is Shen Yu, a forensic doctor who believes in the supremacy of evidence - rational and sharp, which is incompatible with her broken intuition. The roses withered one after another, and the bloody symbols in the mirror reappeared. All clues pointed to the ghost codenamed "Designer." He manipulates people's hearts like puppets, turning the city into a theater of distorted aesthetics.
Lin Yan must face the bloody abyss of memory, while Shen Yu must uncover the mystery of human nature beneath the evidence. When trust is tempered on the edge of life and death, they discover that each other is the missing half of the puzzle.
This is a mirror showdown with a perfect criminal, and it is also the mutual redemption of two broken souls. The only thing they can be sure of is that when the abyss looks back, only each other is the only light that can be held tightly in the darkness.
