' Your Sister's Sister '

Cast - Emily Blunt,Rosemarie DeWitt,Mark Duplass and Mike Birbiglia
Directed by Lynn Shelton

Storyline

Mark Duplass(Jack), emotionally struggling a year after the death of his brother, takes up an offer from his friend Emily Blunt(Iris) to stay at her father's isolated cabin.There, Jack unexpectedly encounters Iris' sister Rosemarie DeWitt(Hannah), a lesbian who has recently broken up with her partner and has moved to the cabin without letting her family know.
Jack and Hannah drink together and strike up a conversation about their relationships, which leads more personal until they find themselves eager for sex. With a condom supplied by Hannah, they have brief sex.Hannah confesses to Iris she slept with Jack.
The film ends with Hannah taking a home pregnancy test with Iris and Jack and is about to see the result.