Wow! That was powerful... and sad! But I have a theory that the saddest stories are always the best kind. Anyway... I like the shortness of it, it's tightly woven and doesn't drag on, which I think is really hard to achieve. I like the flashbacks, too... Although one tiny thing I might change is after the daughter says she's moving, and the mother replies, "Alright, when?" I think the "alright" makes it a little less sensitive. Perhaps you should shorten it to just "when?". I also like the part about Andrea putting the key into the coffin. It makes it even more personal. Great job!