She knows all about love potions... and lovely motions!

As she burns at the stake, 17th century witch Jennifer (Veronica Lake), places a curse on her accuser, Jonathan Wooley (Fredric March - in multiple generational roles), hexing all the future men in his family with bad luck in love. When she returns three centuries later, via a lightning bolt hitting the tree she was killed on, Jennifer wishes to make the latest in the Wooley clan, Wallace, fall in love with her and torment him thus. The only problem is that she accidentally drinks the love potion intended for Jonathan and swiftly proceeds to fall in love with him! The course of true love never did run smoothly, and even less so as Jennifer's, similarly executed, father returns and Estelle, Jonathan's socialite fiancée, gets involved!

Loosely based on the 1941 book 'The Passionate Witch', written by Thorne Smith, it has been long rumoured, but never confirmed, that I Married a Witch was the basis for the TV show Bewitched.