In the spring of 2025, three bizarre murders occurred in Linjiang City. The deceased were all women living alone. The time of death was concentrated on rainy nights. The fatal injury was that the umbrella skeleton penetrated the throat, and half of the broken red umbrella was left at the scene. When Fang Yuan, the captain of the criminal police team, was investigating the scene, he discovered that one of the deceased was actually a college girl he had alienated ten years ago. What shocked him even more was that the details of the case closely overlapped with an unsolved "Red Umbrella Case" in 2015 - when he misjudged the suspect, leading to interruption of clues, which ultimately became a career shame.
The heavy rain came again. Fang Yuan stood in the old building of No. 8 Middle School and finally pieced together all the pieces - the arson case twenty years ago, the unjust case ten years ago, and the serial killings today are just the reincarnation of cause and effect under the same "red umbrella". And the red umbrella that was always missing a rib was silently pointing to the truth he least wanted to face: some people spent their lives chasing the light, but they didn't know that they were already living in the shadows.
