In a world where phone calls create new realities, players take on the role of a detective trying to solve the disappearance of a brilliant scientist who had developed a mysterious app called 'Hello, Who Dis?'. Each call leads to a fragmented memory of a parallel universe where the project had monumental consequences. As players engage in branching dialogues, decipher cryptic messages, and unlock secrets about the scientist's life and their own fears, they must navigate through shifting truths that challenge their perception of reality. Trust no one, as allies and enemies blur in this mind-bending narrative game.