The Silence of the 911 Open Line

A dispatcher just out of training at Grand Forks PSAP must receive the help of an incarcerated 9-1-1 abandoner to uncover the mystery of the serial 9-1-1 open liner, a madman who has been calling in once every night at exactly 0300 but saying nothing. Each call is from a different address and phone number, and the caller is always “gone on arrival”.