Meet Rachel, Carl, Annette, Emma and Mike. To the world at large they're a temp secretary, an investment banker, a nightclub DJ, a doctor and a freelance photographer, sharing a South London house. But their world is larger than most people's, and they're more than what they seem. Together, what they are is the Headquarters for the Investigation of Paranormal Phenomena and Interdimensional Entities, keeping the supernatural elements that live among London's mortals from exposing themselves to discovery, lest the more militant supernatural orders step in with a purge. When London's magically inclined elements start causing chaos throughout the city, it's down to HIPPIE to figure out why before people start dying. (And yes, they are aware that they have an acronym problem.)