One morning in the small town of Coldwater, Michigan, the phones start ringing. The voices say they are calling from heaven. Is it the greatest miracle ever? Or some cruel hoax? As news of these strange calls spreads, outsiders flock to Coldwater to be a part of it.
At the same time, a disgraced pilot named Sully Harding returns to Coldwater from prison to discover his hometown gripped by "miracle fever." Even his young son carries a toy phone, hoping to hear from his mother in heaven.
As the calls increase, and proof of an afterlife begins to surface, the town — and the world — transforms. Only Sully, convinced there is nothing beyond this sad life, digs into the phenomenon, determine