Finding Gemma

Sixteen-year-old Gemma Avery wakes up to a boy's hands around her throat. But this isn't why she screams--she screams because she doesn't know who she is.

The boy disappears but the nightmare doesn't. The ER doctor tells Gemma she has amnesia due to "psychological trauma", and she finds out she was the most popular girl at school, who smokes, drinks, and...bullies. But she can't imagine ever doing those things. The more Gemma learns about her old self, the more she questions if she was ever that person at all.