War Story (2014)

Lee is a world-weary American woman who arrives in an Italian city. Her tangles with hotel staff, incessant smoking and her disregard of the persistently ringing telephone hint at her volatility brewing beneath the surface. Between fitful naps, she wanders the streets, snapping pictures of refugees as if her camera were both weapon and olive branch. Struggling to confront her demons, Lee resolves to help a beautiful young woman in need.

Source: TMDb