Cover Me in Darkness

Amanda used to be in a cult with her mother,but then her mother went crazy and killed her youngest brother. She is put away as not guilty by reason of insanity. Years later when Amanda is working in a job she loves and while not revealing much about herself she seems to be doing okay. Then her mother commits suicide or does she?
Amanda is a little stiff of a character but I definitely did understand the author's reason for this. The cult background was interesting too. The only thing I didn't like was the secondary plot twist. I would have given it 3.5 stars but rounded up because I did like the cult past connection.