The Vampire's Mansion

Summary
After staying at Kogorō's place, Gorō is splitting from Heiji and Kazuma because he has some minor business to take care off. Gorō then thinks about what Heizo told him about vampires while he hears Heiji's voice at the back asking him why he is constantly muttering "don't be sucked". Gorō is shocked to see Heiji and Conan at the back of his car. Heiji and Conan thinks that Gorō might have a meeting with a women. Gorō asks them how they could get in the car. Conan tells him that they went his car after that went to the bathroom at the gas station. Conan pointed to Kogorō's rental car which was also been tailing them. Gorō then explains it to them which shocked Conan and Heiji after hearing that several victims has been murdered via blood loss with two holes in the nape of their necks. After arriving at the mansion, during dinner Hakuya the owner of the mansion didn't arrived. Ran and Kazuha are looking for him at his room. While entering his room, they see a casket. Kazuha opens the casket and sees Hakuya being stabbed with wood right in his heart. This shocked Kazuha and Ran seeing Hakuya in a casket which they both screamed loudly which everyone at the dinner room came to the room of Hakuya. Heiji ask what happened, which Kazuha and Ran explains what they have seen. The family of Hakuya stated that it usually him to do such kinds of things, but Ran tells them that it was really his corpse. Heiji and Conan then take a look in the casket which Heiji tells them that Hakuya isn't evenly in the casket. Conan asks Ran if Hakuya was really in the casket, which Ran tells Conan that he was in there which makes Heiji and Conan wondering.