It was nothing Petra would have ever noticed, even if it had stared her in the face . . .
Detective Petra Connor is struggling with a baffling case when Isaac Gomez waltzes into her office and tells her he's found something she might want to take a look at. A twenty-two-year-old prodigy researching crime patterns for his thesis, Isaac has stumbled upon a series of apparently unrelated deaths in the LAPD case files. All the murders were committed shortly after midnight on the exact same date: 28 June. Can this be purely coincidence?
As Petra's curiosity leads her to investigate further, she becomes convinced that something evil has managed to conceal itself within the dry pages of the cold-case files. And with 28 June only a month away, can Petra stop the murderer in time?