Echoes (2013)

Seth Bloomer is a high school student who finds himself compelled to investigate the suicide of Sophie Lieb, a classmate, against the wishes of Abby, Sophie's twin sister. A mysterious package sent to Seth changes everything: inside is a set of strange discs, with a note declaring that Sophie was murdered. This leads him to discovering more about Sophie and the circumstances leading to her death, involving a schizophrenic middle school student, a disgraced psychologist, and the event that brought all of them together. As Seth descends further, he becomes embroiled in a dark mystery that causes even him to start doubting his reality.