一名謊稱車子拋錨的逃犯，刻意挑中了一間民宅尋求協助。當女主人慢慢察覺有異，很快的雙方將陷入一陣驚悚的生存之戰。

Terri (Taraji P. Henson) is a devoted wife and mother of two, living an ideal suburban life in Atlanta when Colin (Idris Elba), a charming but dangerous escaped convict, shows up at her door claiming car trouble. Terri offers her phone to help him but soon learns that no good deed goes unpunished as she finds herself fighting for survival when he invades her home and terrorizes her family.