Widow Ellen Garner is followed by her husband Mickey's ghost who tries to fix her up. Divorced Les and Gail see their daughter and her husband off but get locked in an unused cabin. Gopher's sister Jennifer makes a beeline for Doc.
A widow (Vernee Watson), who still hasn't gotten over her husband's death, goes on the cruise and is followed by her husband's ghost (Jimmie Walker), who tries to fix her up with another passenger (Greg Morris). A divorced couple (Janet Leigh and Conrad Bain) sees their daughter (Jamie Lee Curtis) and her husband (Peter Coffield) off but get locked in one of the unused cabins. And Gopher's (Fred Grandy) sister (Melissa Sue Anderson) comes on board and makes a beeline for Doc (Bernie Kopell).
- Borrowing the plot of Noel Coward's comedic stage play "Blithe Spirit", "Till Death Do Us Part - Maybe" revolves around the late Mickey Garner, a ghost who keeps popping up to disrupt the life of his widow Ellen. He's trying to help Ellen find a new husband, and well-dressed lawyer Greg Elkins looks like a good candidate. "Chubs" is Gopher's nickname for his little sister Jennifer, who has lost weight and become a knockout. Gopher becomes overprotective of Jennifer and asks Doc to protect her from cruise ship Casanova's, not realizing that Jennifer is attracted to older men - like Doc. Divorced Les comes to see his daughter Linda and her husband Wayne off for a cruise, but Les' ex-wife Gail shows up and the barbs begin flying immediately. The problem worsens when Les and Gail try to leave the ship before it sails, but Gail insists on looking at parts of the ship that are "closed for renovation". The divorced couple winds up getting "Locked Away" in a cabin when the door slams shut and the knob comes off in Les' hand.