Cell
Clayton "Clay" Riddell is a disillusioned artist, who a year earlier abandoned his wife Sharon and son Johnny in hopes of living his dream of publishing a graphic novel. At Boston International Airport, Riddell tries to board a flight in hopes of reconciling with his family. His cell phone battery dies and he reconnects with Sharon by using a payphone. Suddenly an electronic signal (later dubbed "the pulse") is broadcast across mobile networks worldwide, turning cell phone users into rabid killers.