Emily Blunt, Rosemarie Dewitt and Mark Duplass star in YOUR SISTER'S SISTER, a new comedy about romance, grief and sibling rivalry. A year after his brother Tom's death, Jack (Duplass) is still struggling emotionally. When he makes a scene at a memorial party, Tom's best friend Iris (Blunt) offers up her family cabin on an island in the Pacific Northwest so Jack can seek catharsis in solitude. Once there, however, he runs into Iris' sister Hannah (Dewitt) who is reeling from the abrupt end of a seven-year relationship and finds solace in Tom's unexpected presence.
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