Es war Mord und ein Dorf schweigt (2006)

Young Johanna dares to make a fresh start: she buys a run-down house in a small village on the former German-German border and starts her job in the local daycare center. With her charming manner, she quickly dispels the mistrust of most of the long-established residents. But some of the residents soon realize that Johanna has not moved to their village by chance: she is on the trail of a story from the pre-reunification era that many would rather keep in the dark...