Vampire Dad follows the story of Dr. Raymond Walenski, a dentist and family man who suddenly turns into a vampire after a bizarre encounter with a bat. While Ray tries to come to terms with his new condition and suppress his bloodlust, his wife, Carol, works tirelessly to keep their family's secret hidden from the neighborhood and their daughter, Becky.
As Ray struggles to maintain his identity and connection to his human side, he finds himself drawn to other supernatural beings, including a group of vampires led by the seductive and dangerous Valentina. Meanwhile, Carol tries to navigate the challenges of being a vampire's wife, including hiding his unusual sleeping habits and ensuring he has a steady supply of blood.
As tensions mount within the Walenski family and secrets threaten to be uncovered, Ray and Carol must decide whether they can overcome the obstacles that come with living as a vampire couple and remain true to their love for each other and their daughter.