In 'Hello, Who's There?', players step into the shoes of a quirky detective named Charlie Noack, who specializes in solving supernatural disturbances in a quirky, mismatched community. One day, Charlie receives an anonymous letter outlining strange occurrences in the house of a reclusive inventor. Players navigate through Charlie's encounters with eccentric characters, each hiding secrets, and unravel the history involving mysterious devices, peculiar pets, and mischievous ghosts. With a blend of humor and intrigue, players must piece together clues while making decisions that impact the narrative and the fate of the community.