Plot summary
Fran's Aunt Freida ( Lainie Kazan ) is bankrupt and moves into the Sheffield residence. The only way Fran can turn this around is to convince Freida's wealthy boyfriend Fred ( Donald O'Connor ) to propose. Fred does not think of himself as an exciting man, so Fran attempts to give him dance lessons. He has a heart attack and falls on Fran, just as Freida enters the room. After the situation is cleared, everything seems fine again until Fred tells Fran he is in love with her. She plans to stop the wedding, but Maxwell intervenes. Just as the rabbi completes the marriage ceremony, Fred has another heart attack, but he eventually manages to recover.
Credits
Adapted from Wikipedia contributors, The Nanny season 4. HTML formatting and reference markers removed.