Obsessed is a 2009 American thriller film directed by Steve Shill. The Rainforest Films production stars Idris Elba, Beyoncé, and Ali Larter. Obsessed tells the story of a successful asset manager, who has just received a huge promotion, is blissfully happy in his career and in his marriage. But when a temp worker starts stalking him, all the things he's worked so hard for are placed in jeopardy.