Obsessed

Obsessed is a 2009 American thriller film directed by Steve Shill and written by David Loughery. The film stars Idris Elba, Beyoncé Knowles, and Ali Larter. The movie follows the story of Derek Charles (Idris Elba), a successful finance executive who lives with his wife Sharon (Beyoncé Knowles) and their two-year-old son Kyle. Derek's life takes a drastic turn when a new temp employee, Lisa Sheridan (Ali Larter), joins his office and develops an obsessive crush on him. Despite Derek's repeated rejections, Lisa continues to pursue him, making sexual advances towards him at the office Christmas party and even following him to his car. When Derek confronts her, Lisa spikes his drink and follows him into his hotel room. The next day, Derek discovers Lisa lying naked in his bed after attempting suicide, and calls for an ambulance. As the story unfolds, Lisa's obsession with Derek becomes more intense, and she begins to make threats against Sharon and Kyle. Sharon eventually discovers Lisa's true intentions and confronts her, leading to a tense showdown between the two women. Obsessed explores themes of marital infidelity, obsession, and the consequences of playing with fire. The film received mixed reviews from critics but was a commercial success, grossing over $73 million at the box office.

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Some movies that have similar genres and were produced around the same time as Obsessed include Coherence, The Departed, Gone Girl, The Imitation Game, Shutter Island, Margin Call.

Obsessed was released in theaters on April 24, 2009.