The Munsters
A family of friendly monsters that have misadventures all while never quite understanding why people react to them so strangely.
10. Autumn Croakus
7.0Nov 26, 1964
Grandpa is feeling lonely and depressed so he contacts a matrimonial agency to find a mate. The agency sends over a nice looking elderly woman who find Grandpa to be delightful. She turns out to be the Black Widow: she makes her living by marrying her suitors, getting them to sign a life insurance policy naming her as beneficiary, and then murdering them.