Dark Corner of Old Building

The tenants of the old building in the old city disappeared out of thin air, their luggage and documents were not touched at all, and the place was unusually clean. Private detective Chen Mo took over the case, and the clues pointed directly to the mysterious female neighbor upstairs. There were strange noises in the corridor late at night, tenants who stayed behind closed doors, and unmonitored blind spots. A disappearance case revealed the secrets deep in the old building. The truth was hidden in every unanswered echo.