On a trip to her hometown, workaholic Ally reminisces with her first love Sean, and starts to question everything about the person she's become. Things only get more confusing when she meets Sean's fiancé, Cassidy, who reminds her of the person she used to be.
Somebody I Used to Know, A quien solía conocer, Alguém Que Eu Costumava Conhecer, Dawna ja, Eskiden Tanıdığım Biri, Ismerős a múltból, Jemand, den ich mal kannte, Mi ricorda qualcuno, Quelqu'un Que J'ai Bien Connu, Una antigua conocida, Кто-то, кого я знал, 彼女の面影, 曾經的我, 熟悉的陌生人