My Seester, Lucifer

Sarah's younger sister Lucifer is stranded a la Castaway (2000) and forced to address the meteoric rise and subsequent cancellation of their shared mother, Memaw. Mentions of art school meltdowns, fake gun lockdowns, pottery heists, and \[insert other keywords that only Lucifer herself is capable of]. A wedding cake for Myrtle is undertaken & completed, against all odds.