Told in reverse chronological order, how to prepare for an existential crisis, begins at the bitter end of an unknown climate catastrophe as two lone workers stand in front of a conveyor belt lined with dead bodies. As KEY and her co-worker, CARLOS, inspect the bodies for anything valuable...CARLOS grills KEY about her love life. Though the backdrop is hellish, their conversation remains quotidian--the last vestige of normalcy. But when KEY recognizes the body she's inspecting, her world unravels and the play moves backward in time, slowly revealing how the chaos of a changing world got her separated from TYLER and SWEETIE, her best friends. Consumed with regret, KEY tries desperately to find her way "home".