The contemporary story of a priest who launches a centre for troubled youth in a small parish. He is a good priest and is well-liked by his congregation, which remains unaware of his complicated past.

This harrowing tale of survival centers on Rose, a Masurian woman, whose German soldier husband was killed in the war, leaving her alone on their farm. A single woman had no defense against Russian soldiers who raped as a form of revenge, nor against plundering Poles who found themselves in desperate straits. Help arrives for Rose in the form of Tadeusz, a former officer in the Polish Home Army who deserted after he saw his wife raped and murdered by Russian troops and is attempting to hide his identity.

In September of 2017 German writer and director Daniel Raboldt accompanied a group of German and Polish scientists and students into the woods of Masuria, Poland. The expedition aimed to find traces of the so-called "lost villages", left by the Masurians around 1945 by the end of the Second World War. Today only some of the old graveyards can be found deep in the woods of the beautiful Masurian landscape. The documentary "In the back of history - The lost villages of Masuria" shows the students at their work in the historic archives and in the woods. How conclusive can this kind of historic research be? How much can we really learn by looking through old files or other sources? And what can we learn from the vanishing of the Masurians? Do we face similar problems today? The film dives deep into themes like the rise of nationalism and identity and uncovers the tragic end of a population that was asked one simple question in the early 20th century: Stay or Leave?