In 'Hello, Goodbye', you become Alex, an eccentric telegraph operator in the early 20th century, who discovers a hidden code that allows you to communicate with people across timelines. Your mission is to help historical figures solve their most pressing dilemmas by sending cryptic messages and piecing together their struggles. However, a sinister organization aims to control time itself, and you must navigate fraught moral decisions and unexpected friendships while trying to unravel the mystery of the timeline. Each choice you make pushes the narrative in a thrilling direction, with dramatic twists at every turn.