Lucard bites a teenage thief, unaware that he has a rare antigen in his blood that can kill the vampire who ingests it. Famed vampire doctor Gabor Varney informs him that there is only one cure: water from the Paquette Spring in the Bettange Valley. Sick and delirious, Lucard doesn't trust anyone, and insists on going himself. Meanwhile, Sophie is dating a creepy young existentialist poet who turns out to be the thief whom Lucard bit.