Circumstance (2011)

Atafeh and her brother, Mehran, have grown up in a home filled with music, art, and intellectual curiosity. Atafeh dreams of fame and adventure, and she and her best friend, Shireen, explore Tehran’s underground scene with youthful exuberance and determination to be themselves. Meanwhile, Mehran returns home from drug rehab, and renounces his former decadent life with a vengeance. His once obsessive practice of classical music soon finds more destructive outlets.
As Mehran disapprovingly observes a budding relationship between Atafeh and Shireen, he becomes obsessed with saving Shireen from his sister’s influence.