Sharon and Derek have all they've ever wanted... but someone else wants it more.
Obsessed is a 2009 American psychological thriller film directed by Steve Shill and written by David Loughery. Starring Idris Elba, Beyoncé, and Ali Larter, the film follows Lisa Sheridan (Larter), an office temp who develops unrequited feelings for her boss, Derek Charles (Elba), and repeatedly attempts to seduce him. Derek's wife, Sharon...