The phrase, “It’s Complicated,” is an understatement in this too close for comfort love square West Coast style comedy/drama, set in the San Juan Islands in Washington State. With a respected indie background, director, Lynn Shelton, has had other Sundance successes including, “Humpday,” “We Go Way Back,” and “My Effortless Brilliance.” In Emily Blunt’s second film at the festival she explains that “Your Sister’s Sister,” was shot in only twelve days.
Let me see if I can recap: A 20 to 30 something guy and a girl are best friends. The guy’s brother passes away. The girl had slept with the guy’s brother prior to his passing, but was not in love with him. The guy harvests resentment and the girl suggests spending the weekend by himself at their family vacation home in the San Juan Islands in Washington State. When he gets there, unbeknownst to him, the girl’s lesbian 1/2 sister is there upset because she just split from her 7 year love affair. They get to know one another better over a bottle of Tequila, however, one of them is coniving a plan, and the relationship between the guy , the girl, and lesbian 1/2 sister, will be altered forever.