There will always be people who will stand up and fight bravely for the benefit of mankind. The Hellfire Association is such an organization. Although its members are few, they are all strong. They take care of each other and eradicate evil together, hoping to restore social order one day.
A mysterious legend is also circulating in the mainland: a beautiful young woman may know the secret of defeating the powerful Kagan. Ryan (Christina Logan), a beautiful 23-year-old woman, is an orphan. She earns a living as an entertainer in a circus. Circus directors and Hercules often cut her with knives or splash water to abuse her. Watching poor Ryan bleed or burn his skin has become the favorite program of some abnormal viewers, because Ryan's physical performance when injured is very different from that of ordinary people. Lonely Ryan has only one friend, fencing actress Amanda. Hercules has been drooling over Ryan's beauty, getting drunk all night, and intending to invade Ryan. At the moment of desperate resistance, Ryan suddenly saw the picture of his mother being violently killed when he was 5 years old. In a rage, Ryan bit Hercules' throat, and she tasted the taste of drinking human blood for the first time, and also broke out with super powers different from ordinary people. The death of Hercules stirred up a thousand waves in the circus. People tried to round up Ryan. Ryan is a killer, and he never goes easy on those who offend him. He killed his friend Amanda by mistake. Remorsed Ryan fled into the forest with Amanda's sword.
Vampire hunters Vladimir (michael madsen) and Sebastian (matthew davis) are members of the Sulfur Society, which aims to eliminate vampires. When they heard about Ryan, they only found a body in the circus. Ryan, who was desperate for the horizon, decided not to attack human beings and was eager to know her life story. The witch in An Appointment between Lu and Yu tells her the truth: She is a hybrid of human and vampire, and the murderer who raped and eventually killed her mother was her father Kagan (Ben Kingsley), a powerful vampire king. However, Kagan's territory is heavily guarded, and the only possibility for her to enter and get close to Kagan is to find the "Eye Curse". At the same time, Kagan also learned that Ryan, the "ghost bastard" who left many years ago, is still alive, so he sent his right-hand man Domaster (Will Anderson) to find his whereabouts and wait for an opportunity to get rid of him.
Avoiding the heavy organs and strict guards of the monastery, Ryan got the "amulet of eyes". When she was about to leave, the unexpected monk king told her that there are three amulets in the world, namely "eyes, heart and ribs", and Kagan has occupied the "rib amulet". Once all three amulets fall into Kagan's hands, he will have the ability to rule the world, and the world will fall into eternal darkness. Domaster, who learned the news, wounded Ryan and threatened him to go to the territory of the vampire Leonid. Vladimir and Sebastian who followed him fought fiercely with the vampire side. Leonid, who had been drinking and having fun all day, died, and the weak Ryan was saved to the territory of the Sulfur Society. Ryan tells the whole story and mission after meeting the hunter captain Katarin (Michael Rodriguez), thus gaining the trust of the Sulphur Society, receiving the formal training of vampire hunters and being equipped with brand-new weapons and equipment.
Unexpectedly, however, Katarin has defected to Kagan's command, and under her coordination, the territory of the Sulfur Society has fallen into a sea of blood, with heavy casualties. Ryan and Catalim, who want to dedicate the "amulet of the heart" to Kagan, meet in a narrow way. After a fierce underwater battle, Ryan drained Catalim's blood and greatly restored his vitality. Ryan came to Vampire Castle as a gift of amulets. When he tried to get close to Kagan, Domaster caught him and put him in a dungeon. Vladimir and Sebastian, eager to attack the city, were also deeply imprisoned. Kagan is about to have all three amulets, and the future and destiny of mankind are in jeopardy!
Under Ryan's clever plan, Vladimir, Sebastian and Kagan fought to the death after successfully escaping. In the end, Kagan was subdued and Ryan was free, but Vladimir was killed in the fierce battle and Sebastian was seriously injured. Under Ryan's affectionate treatment, Sebastian won eternal life and became a vampire.