The investigation into a serial murder case that spanned ten years was reopened. Plainclothes police captain Shen Lin discovered that the new murder case was strikingly similar to the unsolved case his father was responsible for back then - each corpse was carefully arranged to imitate Renaissance martyr paintings, with dark blue ribbons and mysterious rings arranged, all pointing to a long-standing secret.
During the investigation, Shen Lin met Jiang Lan, an elegant criminal psychology professor. This mysterious professor seems to know a lot about the case and can always predict the murderer's actions, just like an outside observer or a chess player participating in the game. In the process of pursuing the truth, Shen Lin found himself attracted to this dangerous and charming man.
As the investigation deepens, a mystery involving many parties emerges. His father's suicide, the mysterious painter's predictions, and the carefully designed serial murders all point to a truth that can subvert everything. In this city that is shrouded in fog all year round, when love comes on the road to pursue the murderer, will the truth be more suffocating than the fog?
In this city shrouded in fog all year round, love and truth, redemption and revenge, who is the manipulator hiding in the dark? When the last mystery is revealed, who can escape unscathed?
Concept: Is the truth really that important?