Another Heaven: Eclipse(2000)

Original title: アナザヘヴン～eclipse～

Suspended detective Goro Minazuki is asked by a private investigator to search for a missing woman. His investigation soon reveals that several women disappeared around the same time, and one victim is found clutching a mysterious purple stone. As Minazuki digs deeper, the disappearances begin to connect with a bizarre series of events that challenge the boundary between human evil and something far more inexplicable.