After a meteor shower strikes Los Angeles, toxic smoke is released across the city causing people to physically change and become violent. A small group of survivors plans to vacate the city by heading to the coast.
One night at a party, a group of friends experiment with trace phenomena - a form of EVP (Electronic voice phenomena), however, one by one the friends begin dying and soon realize a door to a horrific realm has been opened. It's a race against time and demonic forces to sever the transmission, save themselves and prevent the demon from entering our world.