In Neuschwanstein Castle, Paula and Philipp meet a secretive stranger who is wearing King Ludwig's cloak. They do some research on the mysterious circumstances surrounding Ludwig's death. A man with King Ludwig's majestic cloak around his shoulders wants to make Paula and Philipp believe that he is the late monarch. How did Ludwig actually die? The two journalists create a radio play to illuminate for their listeners the various theories on King Ludwig's unresolved death at Lake Starnberg. No one knows for sure if it was murder or suicide. The meeting with the mysterious man is an opportunity to hear the customary differences when speaking with a friend or a stranger. Listen for the formal "Sie" and the informal "du." The infinitive of the verb "sein" (to be) is.