In the Evernight City, where the neon lights never go out, private detective Lin Yao has a curse-like talent - he can hear the emotional whispers left behind by objects. A seemingly ordinary case of the disappearance of a rich girl drags him into a huge vortex composed of artificial intelligence, memory tampering and the secrets of the city's core. What he pursues is not only the truth, but also the echo of human nature lost in the fog of technology.