In the near future, where the senses can be bought, rented, or taken away, Neumann Corporation’s sensory substitution technology, known as SS, has reshaped the world. The rich can experience the ultimate pleasures without taking on any risks, while the poor are forced to sell their five senses just to survive. A new underclass has emerged: “sensory surrogates.”
When a series of bizarre murders takes place and evidence at the scenes suggests the killer seeks far more than murder itself, the stubborn detective Raine is forced to take the case. The only lead comes from Ayla, a blind prodigy sculptor who “heard” the crimes happen. Under pressure from police leadership and after lobbying by tech giants, the court approves a radical and dangerous ruling: forcibly swap Ayla’s extraordinary hearing with Raine’s vision for a limited time.
Raine steps into a twisted, chaotic visual hell made of sound, relying on Ayla’s guidance to decipher the killer’s trail. Ayla, meanwhile, sees the world’s dazzling strangeness for the first time, but also confronts its cruelty. As their senses shift and intertwine, the two form a profound bond no outsider can understand. They gradually realize that the killer they are pursuing, known as the “Collector,” is obsessed with gathering humanity’s most extreme sensory experiences and may himself be a horrifying product of this technology.
To prevent further tragedies, Raine and Ayla must delve into the depths of the sensory black market and face their increasingly blurred sensory boundaries, as well as the risk of permanent nerve damage. In this final showdown, where the senses are weapons, they will uncover the dark truth behind the technological monopoly and pay a price they cannot afford to lose
