Jerry and Rachel are two strangers thrown together by a mysterious phone call from a woman they have never met. Threatening their lives and family, she pushes Jerry and Rachel into a series of increasingly dangerous situations, using the technology of everyday life to track and control their every move.

When Christian, an LA trust-fund kid with casual ties to Hollywood, learns of a secret affair between Tara and the lead of his film project, Ryan, he spirals out of control, and his cruel mind games escalate into an act of bloody violence.

Jerry Shaw and Rachel Holloman are two strangers whose lives are suddenly thrown into turmoil by a mysterious woman they have never met. Threatening their lives and family, the unseen caller uses everyday technology to control their actions and push them into increasing danger. As events escalate, Jerry and Rachel become the country's most-wanted fugitives and must figure out what is happening to them.

When Christian, an LA trust-fund kid with casual ties to Hollywood, learns of a secret affair between Tara and the lead of his film project, Ryan, he spirals out of control, and his cruel mind games escalate into an act of bloody violence.