Sixteen-year-old Simon has always been considered odd. Three years ago, a skateboarding accident caused some minor brain damage and made him a little stranger. He spends much of his time living in his imagination. When Andrea appears to Simon in class, he strikes up a friendship, even though he knows she may be pure hallucination.-Simon strikes up a friendship with Andrea, even though he knows she may not be real. Andrea says she's there to save him, but Simon discovers it's he who must save her.