O(2001)

O

Short version: Well, it is Othello, right?

Long version: Hugo (Josh Hartnett) has led Odin (Mekhi Phifer) to believe that Desi (Julia Stiles) is cheating on him with Mike (Andrew Keegan). After a lot of bloodshed, Odin kills himself rather than be arrested for strangling Desi. The last surviving guilty party, Hugo, is hauled off in handcuffs.