Samantha Ranvali can't sleep. Haunted by nightmares and the memory of a man who attacked her years ago, she seeks a cure for her insomnia through an experimental study called Endymion's Circle. The treatment seems to be a success, but after her first full night of sleep in months, Samantha learns that one of the other participants in the study has been murdered. The body is found crucified upside down, and a recording of J. S. Bach's Goldberg Variations...