Whose Hellos Are These, Anyway?

You play as an eccentric detective in a bustling city where everyone starts mysteriously saying 'hello' to you - even people you've never met. Unravel the comedic chaos that ensues as you navigate through bizarre interactions, colorful characters, and a tangled conspiracy of mistaken identities. Can you figure out why the city's greetings suddenly center around you before someone ties you to the greatest 'hello' heist of the century?