In a world where the voices of the past shape reality, players take on the role of Alex, a struggling sound engineer who discovers a series of mysterious audio recordings that echo memories from others' lives—both mundane and traumatic. As Alex deciphers these echoes, they delve into the intertwined lives of the individuals behind each sound, revealing dark secrets, hidden fears, and unexpected connections. Players must navigate moral dilemmas and make choices that will alter the fates of the characters encapsulated in the echoes, leading to multiple endings. Will Alex confront the haunting truths, or will they become lost in the symphony of others' regrets?