I'll Investigate

Under the neon lights of the bustling city, there are unknown shadows. Lin Mo, an ordinary community grid worker, discovered during a routine visit that an old man living alone, Mrs. Chen, died mysteriously. There were no traces of a fight at the scene, only an old yellowed photo that the old man clutched before his death, showing five young people with bright smiles. Now three people have died in a similar strange way. As the investigation deepened, Lin Mo discovered that these deaths were related to a dusty factory accident thirty years ago, and the survivors of that accident seemed to be being "liquidated" one by one by some invisible force. When people around him began to have hallucinations and encounter strange things, Lin Mo realized that he had been dragged into this revenge puzzle that spanned thirty years, and those eyes peeping in the dark might be staring at his back...