Movie over in 30 minutes if someone just called the cops!
Seriously, Blanche and Elvira weren't the brightest bulbs. If Blanche made it all the way to the phone, isn't it easier to dial 911, have the cops show up, and get you the hell out of there? But she wastes her time on a call to the doctor? WTF? If someone serves you your dead bird for lunch, you jump out the window (use of legs or not).
And Elvira turning her back and putting the hammer down after she knew how dangerous Jane was, is beyond suspension of disbelief. Wasn't this the same person that was suspicious of Jane from the very beginning? I like this movie, but it's beyond frustrating when characters are this stupid.