cccNewYork,1980:threecompletestrangersaccidentallydiscoverthattheyareidenticaltriplets,separatedatbirth.The19-year-oldsjoyousreunioncatapultsthemtointernationalfame,butitalsounlocksanextraordinaryanddisturbingsecretthatgoesbeyondtheirownlives-andcouldtransformourunderstandingofhumannatureforever.