A successful professional man with a beautiful wife finds his idyllic life threatened by a temp in his office who reveals herself as a stalker.

Derek Charles (Idris Elba), a asset manager who has just received a huge promotion, is blissfully happy in his career and in his marriage to the beautiful Sharon (Beyoncé Knowles). But when Lisa (Ali Larter), a temp worker, starts stalking Derek, all the things he's worked so hard for are placed in jeopardy.

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