Enticement leads to terror when a sexy office temp forms a dangerous fixation on a successful and happily married asset manager. Derek Charles (Idris Elba) is good at his job; so good that he's recently earned a big promotion. He's worked hard to get to the top, and when his workday is finished Derek has the luxury of returning home to his beautiful wife, Sharon (Beyoncé Knowles), and their healthy newborn child. But Derek's perfect life begins to crumble when sexy new temp worker Lisa (Ali Larter) goes to work at the office and begins stalking Derek's every move. When Lisa's obsession turns dangerous, Derek and Sharon resort to desperate measures in protecting themselves and their child from her deadly wrath.