Barnabas Collins, a long-lost relative of the Collinwood estate, returns to his ancestral home under the guise of reconnecting with his family. However, his arrival brings a series of sinister events and dark secrets to light. Claiming to be a victim of a centuries-old curse, Barnabas hides his true nature as a vampire. He becomes infatuated with Maggie Evans, a governess who bears a striking resemblance to his lost love, Josette. This sets off a dangerous chain of events as Barnabas attempts to win Maggie's love while trying to keep his vampiric nature hidden.

Meanwhile, Dr. Julia Hoffman, intrigued by the strange occurrences and Barnabas’ ill health, begins to investigate his background and becomes entwined in his world. Discovering his secret, she offers a potential cure in exchange for protection. The tension escalates as Barnabas' unquenchable thirst for blood clashes with his desire for redemption and normalcy. As the mystery deepens, the residents of Collinwood find themselves entangled in a web of deception, leaving everyone to question who they can trust and how to put an end to the malevolent force that threatens them.