In 'Hello? Who's Calling?', players take on the role of an unassuming phone repair technician who, one fateful evening, discovers a mysterious smartphone with no visible owner. As you answer incoming calls, each conversation drags you deeper into a web of intrigue, filled with eccentric characters, twisted tales, and unexpected plot twists. You'll need to piece together fragmented stories, solve digital puzzles, and make life-altering choices as the calls pile up. Every decision reshapes the narrative, leading to multiple endings based on the interactions you've had. Will you unravel the phone's secrets, or will you become another victim of its unknown origins?