Inspired by true events, “Past Life” tracks the daring 1977 trans-European odyssey of two sisters – one an introverted ambitious classical music composer, and the other a combative liberal magazine editor. As they try to unravel a disturbing wartime mystery that has cast a foreboding shadow on their entire lives, they realize that freedom from the shackles of the past requires painful sacrifices, as does the struggle to discover one’s unique voice.