Putty Hill

From Roger Ebert's review:

In a way rarely seen, "Putty Hill" says all that can be said about a few days in the lives of its characters without seeming to say very much at all. It looks closely, burrows deep, considers the way in which lives have become pointless and death therefore less meaningful. It uses fairly radical filmmaking techniques to penetrate this truth, and employs them so casually that they seem quite natural.