“Five rich, spoiled Asian twenty-somethings (Gijs Blom, Aviis Zhong, Yen Tsao, Philip Juan, Anechka Marchenko) are suffering from upper class ennui, unsure how to spend their days when so little is expected from them. In search of excitement, the five friends form the “Circle,” a group where they take turns designing a unique, extravagant experience for the others. But things go wrong when the privileged urbanites awaken after a night out, to find they have developed vampire fangs and an unquenchable thirst for flesh, blood, and adventure at any price.” That’s how Shudder, which will begin streaming the film November 4, describes it. It will make its debut September 25 at the Fantastic Fest in Austin, Texas.