Her first session with Dr. Owens & Ms. Mercy sends Tobin back to her earliest memories. Things don’t go as planned. 

Excerpt:

"That's a good girl.” Ms. Mercy patted her hand. “Let's do some more deep breathing. Remember, in through the nose, out through the mouth, alright? Good. Listen." Her voice changed. It became melodic, like she was singing. "Focus on my voice. Erase all thoughts from your mind. In. And, out. Again. You’re getting tired, so tired. Your muscles are relaxing. Melting."