Pulse - When everyone is networked, no one is safe

Based on the novel by Stephen King: Clay Riddell (John Cusack) is on a business trip in Boston and looks forward to his flight home to his family. Suddenly, and seemingly out of nowhere, all mobile phone users transform from one moment to the next into bloodthirsty, zombie-like killers who turn on each other. Amidst this apocalyptic chaos, Clay, the tough subway driver Tom McCourt (Samuel L. Jackson), and young Alice (Isabelle Fuhrman) manage to escape to a hotel. Cut off from all digital means of communication, the three decide to set out on foot in search of Clay's family. Hunted by the murderous hordes, their journey through the cold forests of New England becomes a bloody fight for survival, where death lurks around every corner.