In 'Whose Voice Is This?', you play as a disgraced former detective who receives an enigmatic phone call from an anonymous voice claiming to hold the key to your greatest unsolved case. As you delve into a series of increasingly bizarre and dramatic scenarios—ranging from a heist at a ghostly jazz club to a showdown with a karaoke-fueled cult—you must uncover the identity of the caller and confront your dark past while navigating a labyrinth of quirky characters, each providing clues and red herrings along the way. The game features dynamic dialogue choices that allow you to shape the narrative, risking life, career, and sanity in the pursuit of truth.