FBI Special Agent Rose Blake has faced evil and survived. Haunted by a failed undercover mission, Rose can't shake the memory of her close encounter with a ruthless serial killer - one who could strike again without warning. The call to investigate a suspected arson attack that's left a man dead is a welcome distraction. It's not the kind of case usually assigned to the FBI, but nothing about this crime is usual. As Rose digs deeper, she finds herself confronting the sort of imagination her son might see in the fantasy worlds of his video games. But when your opponent is a killer, nothing feels like a game.