A Dark Matter

Forty years ago, Spenser Mallon led a group of young students to witness a brutal, ritual murder. The survivors never recovered. Now, it seems, he's back... It is the 1960s and the charismatic and cunning Spenser Mallon is a campus guru, attracting the devotion and demanding sexual favours of his young acolytes. After he invites his most fervent followers to attend a secret ritual in a local meadow, the only thing that remains is a gruesomely dismembered body - and the shattered souls of all who were present.
Years later, one man attempts to understand what happened to his wife and his friends by writing a book about this horrible night, and it's through this process that they begin to examine the unspeakable events that have bound them in ways they cannot fathom, but that have haunted every one of them throughout their lives. As each of the old friends tries to come to grips with the darkness of the past, they find themselves face to face with the evil triggered so many years earlier...