Conduct in "A Minor"

The year is 1885. Haunted by a mysterious melody, seventeen-year-old Savannah Briggs, orphaned and homeless, faces a life of loneliness and danger on the streets. Nearly killed in a savage attack, she is saved by the enigmatic Isaac Neillands, medical doctor and professor of anatomy. Neillands takes Savannah into his home to heal from her wounds. As time passes, she becomes a member of the family, but has Savannah found safety or merely exposed herself to greater danger in the house of this seeming gentleman? Is the minor melody a guide, curse or madness? What is the secret of