You could do a lot worse than having a stalker who looks like Ali Larter, but there's nothing fun about it when you're married. That's the situation Idris Elba (Stringer Bell from "The Wire") is facing when casual office flirtation turns into full-blown crazytown. Beyoncé co-stars as Elba's wife and soon also faces the wraith of Larter.

Check it out in the clip below, and then click here to read our interview with the singing sensation about her latest role in "Obsessed," out in theaters today.