Zhang Meng, a newcomer in the workplace who was suffering from the noise upstairs, accidentally bought a mysterious earplug that claimed to "solve the root cause of the noise." However, the earplugs brought not only deathly silence, but also the sad news that the evil neighbor upstairs was brutally exterminated. As time fell into a strange loop, Zhang Meng discovered to her horror that as long as she complained about who was noisy while wearing earplugs, the person would die mysteriously. Is it a coincidence, an hallucination, or a curse from the earplugs? Amidst the layers of fog and blood, can she distinguish between reality and nightmare, and escape from this silent spiral of killing?
