This is a pretty pedestrian crime drama. It's about the frantic wife who hears a lot of violence going on in the upstairs apartment. He husband tells her to mind her own business, but then he becomes involved himself. The key to the whole thing is finding how a body would be disposed of. To modern viewers, this is a bit far fetched; at the time it was done, it was probably more believable, especially to a male dominated society (more male that is). Anyway, I believe this eventually evolves into a story about a person who is delusional. The acting is pretty believable. The final moment is pregnant with possibilities but the question is, "Why would someone bring suspicion to herself?" Or am I missing something?