Three-hundred-and-twenty-seven-year-old vampire Count Elias suffers chronic canine toothache for centuries. One dawn, he visits human dentist Seraphin, who is surprisingly fearless of his fangs and cold body temperature. Fascinated by Elias’s unique dental structure, Seraphin treats him gently. As they spend time together in the ancient Gothic castle with vintage dental equipment, loneliness plaguing Elias fades. A vampire hunter arrives intending to slay Elias but ends up becoming Seraphin’s dental patient. The two men overcome the huge lifespan gap between human and vampire, resolve inner fears of separation, fall deeply in love, and hold a castle wedding. Seraphin accepts Elias’s blood to gain immortality, and they live out an everlasting routine of dental checkups, quiet companionship and endless soft affection.
