It's hard to believe practical, petite ex-schoolteacher Patricia Anne and amiable, ample-bodied, and outrageous Mary Alice are sisters, yet sibling rivalry has survived decades of good-natured disagreement about everything from husbands to hair color.

Those hilarious southern sisters, who prove that sibling rivalry never ends, are heading for a vacation at the beach. Mary Alice's flamboyant behavior aside, serious, sensible Patricia Anne looks forward to relaxing at her sister's beachfront condo in Destin, Florida, so she kisses her ever-loving spouse Fred god-bye, reminds him to water the plants and feed the dog, and the girls head south for some fin in the sun. Mary Alice loses no time in making...

Sisters Patricia Anne and Mary Alice find murder and mayhem when they decide to make a fortune by joining a local investment club, and Arthur, the husband of the club's leader Mitzi, is accused of killing his supposed mistress.

Oversized, outrageous Mary Alice and her prim sister Patricia Anne have been looking forward to the gala benefit being staged to raise money for the restoration of Vulcan, Birmingham's ever-tarnishing unnatural wonder. And what a show it is, with a grand finale that has thirty sequined Elvis impersonators high-kicking in unison! From the front row, "Mouse" and "Sister" have a perfect view of the action when one of the dancing Kings keels over dead...