Twenty-three-year-oldPeterFosterisanonlychildwholivesathome,whereheconstantlyhearshisparentsarguing.BecausePeterdoesnothingallday,thefamilygoestoaclinicwhereatherapistvideotapesthem.AfterPeterwatcheshistape,heviewsthetapeofatroubledArmenianfamily,whogavetheironlysonawayforadoptionwhentheyarrivedinCanada.Peterdecidestovisitthisfamily,andhepretendstobetheirson,BedrosDeryan.TheDeryanfamilywelcomeshimwithopenarms,andPetertriestopatchupthepoorrelationshipbetweenGeorgeDeryanandhisdaughterAzah.