Poltergeist is a one-track project, the well-known marketing formula in electronic music. This project was started in 1993 by Simon Berry at the same year as he started his world-known one - the Art Of Trance. For some reasons the alias A.O.T. was more acceptable (successfull?), though the sound of a track 'Vicious Circles' doesn't so much differ from the main Berry's project.