Who Said Hello?

In a bustling, futuristic metropolis, you find yourself in a series of perplexing encounters where people greet you with 'Hello' but swiftly disappear or fall unconscious. As a quirky detective equipped with an oversized magnifying glass, you must navigate through a web of social interactions to discover the truth behind a mysterious 'Hello' communication device that’s altering the minds of its users. Every choice you make influences the relationships you build and the bizarre suspects you encounter—from a talking pigeon with a secret, to a conspiracy theorist who believes in alien greetings. Solve puzzles, gather clues, and engage in witty banter as you unravel the enigma behind this unusual phenomenon.