Ring of Darkness

When a boy bands lead singer mysteriously disappears the media says that he ran away because he could not handle the fame, but really the other band members killed him and have hidden their identities as undead from every one. With an "American Idol" type audition they remaining band members choose a new guy to fill the place. Now he must go to an isolated mansion to be initiated, but soon learns what the others really are and decides he would rather not be party of the band. (imdb)