It originally aired on ABC, on November 23, 1966 and guest starred Carolyn Jones as the episode's titular villainess.
Meanwhile, Batman and Robin, along with Alfred Pennyworth, are testing a gigantic "Bat-Diamond" in the Batcave when they get the call from Commissioner Gordon about the burglary as well as O'Hara’s alleged involvement.
Commissioner Gordon does not wait for Batman and Robin to arrive at Police HQ; instead he visits Marsha, asking about the whereabouts of O’Hara.
Marsha extorts Batman by holding Robin hostage in exchange for the Bat-Diamond, including a visit to the Batcave.
Should Batman refuse the marriage offer, Robin, Commissioner Gordon and Chief O’Hara would all be under her captivity, forever.