Gracie and Joe Atherton-Yoo (Julianne Moore, Charles Melton) are familiar with the spotlight: their love affair – with a 23-year age gap – sparked a notorious tabloid romance that gripped the nation. Now a married couple, two decades later, their relationship comes under renewed strain when actress Elizabeth Berry (Natalie Portman) arrives on their doorstep to spend time with the family, and to better understand Gracie, who she'll be playing in a film about the scandal.