This film is like a great term paper: it flows like fire-water from a heated pitcher. I bought it on a caprice, only to rivet myself to the screen unexpectedly. Tilda Swinton is absolutely flawless (not to mention Visnjic) in a very strange tale about a mother's endless desire to protect. Not that I consider it a true flaw, but I would have liked for Margaret to tell Beau exactly why things had been so screwy and deadly for the past two days. The opportunity arises at the very end but she decides not. For me, I certainly would have explained to a seventeen-year-old boy that if he screws around with derelicts in seedy closets, people die. It's sort of an important part of growing up. However, directors McGehee and Siegel decide to omit that part. While the film is a must for thrill-seekers, I really felt that the boy should have been let in on the sticky, lethal web his juvenile lust did spin. BUT TILDA ROCKS! Just like this movie.