Planet Erde soll brennen (2013)

Fidel is a young journalist who is specialized in mysterious stories. One day he receives an eerie call from a stranger. The caller tells Fidel about a man named Steffen, someone who is insanely obsessed with the idea that aliens are secretly controlling our planet. When Steffen dies soon after the phone call, Fidel is sure that this is his next story. He decides to break into Steffen's house to investigate the case on his own. As he listens to the audio diary that Steffen has left behind, Fidel starts to doubt that Steffen was really insane...