It revolves around Rose Hathaway who is a guardian-in-training Dhampir, and Lissa Dragomir, who is a Moroi princess, and follows their life and adventures at the St Vladimir's Academy, a boarding school.

[6] Following the movie failure, Preger Entertainment launched a Indiegogo campaign to help fund the production for a sequel based on the second novel, Frostbite.

[4] Though Plec initially announced that they were shopping the series to other platforms, she confirmed in April 2023 that cast contracts had expired, ending chances of a revival.

[9] In August 2021, the core cast for the series was set, including Sisi Stringer as Rose Hathaway, Daniela Nieves as Lissa Dragomir, Kieron Moore as Dimitri Belikov, and André Dae Kim as Christian Ozera.

[10] In August 2022, Angela Wynter, Lorna Brown, Louisa Connolly-Burnham, Cornelius Macarthy, Jason Diaz, Jennifer Kirby, Joseph Ollman, and Pik-Sen Lim were cast in recurring capacities.

[11] Filming had begun in Spain in locations such as Pamplona, Olite, Viana and Zaragoza in September 2021, as revealed by Bille Woodruff, who directed the pilot, and Julie Plec.