Beth Monroe just wants to make it through the summer baseball season without being the constant target of her brother Shane's jokes, but he is relentless, and she's ready to lock herself in her room and hide.
Until the new girl shows up.
Halley appears in small town Barryville like a ghost. No one knows where she came from or anything about her past, not even her last name. When she gives Beth a piece of unsolicited advice that, “It's what's on the outside that counts,” Beth changes everything about herself.
By the time Beth realizes she's becoming a monster, it might be too late, and Halley has already sunk her claws into Beth's best friend Ryan -- who might've been something more if Beth had opened her eyes a little earlier.
As Halley's past catches up to her, Beth realizes there's more to this mysterious girl than she realized. Can she stop Halley from revealing her true, monstrous nature to Ryan before it's too late?