Dr. Cara Jessup has made a career out of defying the notion of multiple personality disorders. In the courtroom, her views and testimonies as an expert witness against multiple personality disorders have resulted in the death sentence of more than half a dozen murderers. Cara is devoted to science, but even her husband's horrific murder did not cause Cara to lose her faith in God. Not so for her young daughter Samantha, a committed unbeliever.