When the dead discover a means to contact the living through electronic devices, cellphones and computers become open gateways to monstrosities and destruction.
Pulse is a 2006 American techno-horror film directed by Jim Sonzero from a screenplay co-written by Wes Craven, and starring Kristen Bell, Ian Somerhalder and Christina Milian. It is an English-language adaptation of Kiyoshi Kurosawa's 2001 Japanese film of the same name.