"Eternally Yours" is a family comedy centered around Charles and Liz, a vampire couple whose once-passionate romance has devolved into a pulseless marriage after 500 years together. Living in present-day Seattle with their oddball coven, they've settled into an eternal rut – until their daughter Emma's earnest human boyfriend, Max, unexpectedly enters their lives and forces them to confront whether their love can survive forever... or if forever is a life sentence. Max finds his world turned upside down after he discovers the truth about Helen's mysterious family.