YMMV / Grimm S 1 E 4 Lonelyhearts

• Complete Monster: Billy Capra is an especially dangerous Ziegevolk, responsible for committing numerous rapes across the country. Ziegevolk naturally produce powerful pheromones that make themselves come across as more attractive and charming, especially towards the opposite sex. However, through consuming a special type of toad, Billy vastly enhances his powers, granting himself a form of Mind Control. His MO is to find vulnerable women in the nearby bar, then use his pheromones to force them to come to his bed and breakfast. Once there he imprisons them in cages in his basement, pumping the room with a powerful sedative gas to keep them docile, then rapes them over and over again until he gets bored with them. Having already kidnapped three women in Portland for a period of several months, Billy tries to capture Faith Dunhill but she manages to escape. Tracking Faith down, Billy suffocates her—despite his race's long standing nature of nonviolence—to keep his crimes secret. A few nights later, he tries again with another woman, Lisa. Realizing the police are onto him Billy attempts to abandon Portland, forcing Lisa to go with him.