About Somebody I Used to Know: On a trip to her hometown, workaholic Ally (Alison Brie) reminisces with her first love Sean (Jay Ellis), and starts to question everything about the person she's become. Things only get more confusing when she meets Sean's fiancé, Cassidy (Kiersey Clemons), who reminds her of the person she used to be.
About Prime Video: Want to watch it now? We've got it. This week's newest movies, last night's TV shows, classic favorites, and more are available to stream instantly, plus all your videos are stored in Your Video Library. Over 150,000 movies and TV episodes, including thousands for Amazon Prime members at no additional cost.
