Lin Wan is an ordinary office worker renting a room in the old Echo Apartments. Built in the 1980s, this apartment block is known for its residents being able to hear one another’s echoes clearly, yet it never lacks tenants.
A month ago, the twelfth resident vanished under mysterious circumstances. Since then, an eerie rumor has spread through the building: every night at midnight, the elevator stops once more at the thirteenth floor, a floor that doesn’t exist.
One night, Lin Wan accidentally presses the button. From that moment on, she is drawn into a chain of mysteries spanning ten years. The vanished residents, hidden surveillance footage, the secrets behind every tenant, and her own increasingly blurred memories... The truth is far more terrifying than ghosts.
