Utter torture, overwhelming and paralyzing, for those who suffer from it. Others scornfully dismiss it as adolescent grief. Heartache has not been thoroughly investigated very often. The sleepless nights , but also the intense sensations and bursts of creativity: profound anguish does strange things to you. As it turns out, surprising processes take place in our brain when someone is dealing with intense heartache. A delicate , fascinating and compelling documentary by Christian Frei, the Oscar-nominated director of War Photographer .