Watch Somebody I Used to Know (2023) HD Full Movie Free on SolarMovie. Watch Somebody I Used to Know (2023) online free. On a trip to her hometown, workaholic Ally reminisces with her ex Sean and starts to question everyt...On a trip to her hometown, workaholic Ally reminisces with her ex Sean and starts to question everything about the person she's become. Things only get more confusing when she meets Cassidy, who reminds her of the person she used to be.