It all started with a single, brutal case... The violent death of schoolteacher Lores Ashworth. Her lifeless body was discovered in a desolate vacant lot bordering the forest. Beside her, a chilling note detailed the reasons for her demise, a litany of her alleged sins and vices.

Detective Daine Gant and his team launched an investigation, even managing to track down a potential suspect. But their pursuit of the criminal took a terrifying turn.

They were trapped. Inside an abandoned military bunker. Most of his team...gone. Some lost, radios dead, desperately searching for each other. Gant was alone. Then he found her... A mysterious girl, hidden within the desolate depths. What was she doing there? She was afraid...