The protagonist, Selma, attends a New Year's gathering at her husband Chester's family home. His childhood sweetheart Shirley offers to cook, prompting Selma to recall her past life where Shirley deliberately poisoned her with scallions. Now reborn, Selma reverses the situation, claiming a ginger allergy—Chester's actual allergy—and requests scallions instead. This calculated move shifts the immediate danger onto Chester, setting the stage for his family's reaction and testing their hypocrisy as Selma begins her revenge.