random guess but maybe the article of the woman who went missing has to relate to the older lady running the home? a man wanting to be free (butterfly- a free creature) from the marriage asks for a divorce (such as in where the woman has a break down from her husband asking for a divorce then goes missing.) but in this case, the lady went crazy and murder her husband (like in the tell-tale-heart where the dude murders the old guy then sticks him under the floorboards.) but instead she sticks him in a taxidermy polar bear