In 'Hello, Who Dis?', players assume the role of a sarcastic detective who uses a mysterious phone app that identifies unknown voices calling in from different timelines and dimensions. As calls from characters like a disgruntled medieval knight, an alien chef, and a futuristic AI barista come through, the player must solve bizarre mysteries while navigating humorous banter and quick-witted repartee. Each decision changes the narrative's course, leading to outrageous outcomes and unexpected allies, creating a riotous journey across time!