Blood Moon LoversEpisode 40

Carl, a hybrid werewolf, brings his human wife Eve to an ancient castle for their honeymoon, only to reunite with his vampire brother Miles. An accident causes their souls to swap. Their mother, Vivian, deliberately sows discord, claiming that the only way to restore their souls is for Eve to conceive a child carrying the blood of all three. When the family's secret is exposed, Vivian attempts to kill Eve.