From Dusk Till Dawn

Brothers Seth and Richie Gecko robbed a bank and flee to Mexico. As a hostage you have a clerk Gloria Hill. When you stop in a motel room with Gloria becoming the victim of sexual perversion Richie. As a new hostage to take the family pastor Jacob Fuller. After crossing the mexican border to meet with local smugglers in the bar Titty Twister. Everything goes smoothly (at least from the point of view of Seth and Richie), until the dancers, the bouncers and the bartender won't turn into vampires who have a taste for fresh blood.