Dive into a comedic yet thrilling mystery where you're a lowly phone operator in a quirky city. One day, the city's top citizens start mysteriously disappearing after receiving just one phone call - a greeting from an unknown number. As you navigate through feuding neighborhoods, eccentric characters, and twisted plots, it’s up to you to figure out who is behind the disappearances by piecing together clues from the strange hello’s you've heard across the city. Use your wit and charm to befriend unlikely allies, unearth secrets, and ultimately confront the elusive voice behind the sinister greetings in a race against time.