Whose Echo Is This?

In a crumbling urban sprawl, you are a renowned sound engineer with a unique gift: you can trace echoes back to their origin. One night, a mysterious echo leads you to the lifeless body of a stranger in an abandoned warehouse. As you delve into the layered sounds of the city, you uncover hidden secrets, underground networks, and a conspiracy that threatens to unravel your own sanity. Can you decipher the truth behind the echoes of the past before your own voice is lost forever?