The excerpt from 'Voices in the Theater' by A.S. Santos introduces Samantha's grandmother, Marie, who ventures out at night after sensing something is wrong with Samantha. After a tragic hit-and-run incident, Marie is left gravely injured, while Samantha is at a party, oblivious to the danger. The narrative then shifts to Samantha's perspective at the party, highlighting her internal struggle and foreshadowing a looming crisis as she realizes her grandmother might be in trouble.