In Binhai City on a rainy night, in an abandoned warehouse in the Old Port District, a female body curled up in a glass jar broke the peace of the city. The strange hook symbol on the can and the pale body in high-concentration formalin reminded Lu Chen, the deputy captain of criminal investigation, of the old unsolved case three years ago - the same symbol and the same unnatural death were once an unhealable thorn in his heart.
As the second and third bodies appeared one after another, the identity of the deceased gradually pointed to the participants in the "Binhai New Area" collapse accident three years ago: bartenders, engineers, and doctors. On their bodies, the positions of symbols and the number of hooks kept changing, like a carefully designed countdown to death. The clues are intertwined, involving the mysterious "Abyss Cult", the leader of the transnational crime group "Night Owl", and the truth of the accident that was deliberately covered up - that seemingly unexpected collapse was actually a bloody religious sacrifice.
When Lu Chen led the team to follow the traces of symbols, they found that they had already fallen into a larger network: anonymous threatening text messages, explosive threats all over the city, and shadows hidden within the police station... The return of Night Owl was not only for revenge, but also planned to use the entire Binhai City as a sacrifice to complete the "Abyss Ritual" that was unfinished three years ago.
Under the neon city, the abyss is staring at everyone. Lu Chen had to uncover the truth before the sacrifice was launched, but when Ye Xiao was arrested, he realized that this was just the beginning - those "high-level believers" hidden in the corners of the city had already set their sights on the next target.
