Rosarin, a vampire descendent, lost her sister mysteriously, coincidentally as other people in Bangkok disappeared one by one. She uses her psychic power to track down for her sister, joined by Nop, an IT geek who falls for her at first sight. As the story reveals, the evil vampire boss is collecting special blood for some rituals. His cravings are about to fulfill with several elite assassins under his command. Rosarin needs to fight for her sister or she and Bangkok would be collapsed by the evil vampire.
Lieutenant Kom Sarakupt is assigned to impersonate Cheep Chuchai, a very dangerous criminal who looks like him, so he can infiltrate the Sing Ang organization, which was created to conduct illegal underground business.
Kessarin Ektawatkul is a Thai actress. A former national champion in taekwondo.