Blood Thirst (also known as Blood Seekers and The Horror from Beyond) is a 1971 American black-and-white horror film produced and directed by Newt Arnold, and starring Robert Winston, Katherine Henryk and Yvonne Nielson. Shot on location in the Philippines in 1965, the film tells the story of an American detective investigating a series of murders linked to a Manila nightclub. The killings are carried out by a monster so that a beautiful blonde woman, who is actually hundreds of years old, can use the victim's blood to stay forever young. Blood Thirst was actually completed in 1965 but was not released in the US until 1971, where it was put on a double bill with the British film Bloodsuckers (UK, 1971). Blood Thirst mostly played the grindhouse circuit. Plot New York City detective and sex-crimes specialist Adam Rourke (Winston) has gone to Manila to help his friend, Inspector Miguel Ramos (Victor Diaz), investigate the murders of several young women. All have had their blood drained through identical 10 cm incisions on the inside of each forearm. Miguel suspects a homicidal maniac but has heard rumours that a "strange blood cult" is to blame. Adam goes undercover as a writer seeking the story of the latest victim, Maria Cortez, a hostess at the Barrio Club, owned by Mr. Calderone (Vic Silayan). Adam goes to the club. He brushes off a pretty hostess, Theresa (Judy Dennis), and instead watches beautiful blonde Serena (Nielson) dance. He and Calderone discuss the article about Maria. That night, Adam kills a man who attacked him in his hotel room. Afterwards, he is stopped by a seemingly homeless man who in reality is Herrera (Eddie Infante), an undercover officer with a prosthetic leg who is Adam's police liaison. Sylvia (Henryk), Miguel's adopted sister, drives Adam into the countryside and dumps him there, accusing him of not taking the case seriously. As he walks to his hotel, he sees a drunken Theresa arrive home. Out of sight of Adam, she is jumped by a humanoid monster. At the club, Serena suddenly clutches her face and runs off the dance floor. She looks older than she had earlier. Miguel contacts the police in Lima and learns that Calderone and Serena fled Peru two years earlier, after Calderone was implicated in the murders of several young women. Elena, another club hostess, is then kidnapped by the monster. Adam is