Iris invites her friend Jack to stay at her family's island getaway after the death of his brother. At their remote cabin, Jack's drunken encounter with Hannah, Iris' sister, kicks off a revealing stretch of days.
Currently, you can only stream Your Sister's Sister on Prime + Sundance Now in the UK.
You can buy or rent Your Sister's Sister on the following streaming services in the UK: iTunes, Amazon, Google Play and Rakuten.
Your Sister's Sister was released 13 years ago in 2011.
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