FBI Special Agent Mackenzie White is summoned when another body is found dead in a self storage unit. There at first appears to be no connection between the cases; yet as Mackenzie digs deeper, she realizes it is the work of a serial killer—and that he will soon strike again. Mackenzie will be forced to enter the mind of a madman as she tries to understand a psyche obsessed with clutter, storage, and claustrophobic places. It is a dark place from which she fears she may not return—and yet one which she must probe if she has any chance of winning the game of cat and mouse that can save new victims. Even then, it may be too late.