Nachtigal tells the story of Miranda Namatgira, a bright college student who travels to Belgium for a holiday. One evening, she loses track of time while sight-seeing and becomes lost in the woods. Just as she's about to consider camping outdoors for the night, Miranda happens upon a hauntingly beautiful castle. She decides to venture inside, but nothing could have prepared her for the bloody sight she beholds there...or for the two vampires who capture her.