A police pursuit kicks Sergeant Jack Redding and his trainee, Julie Karras, into a shoot-out that ends with one girl dead and another in cuffs, and the driver of the SUV. Redding stays on the hunt, driven by the trace memory that he knows that running woman --- and he does, because his grandfather, a cop in Jacksonville, was hunting the same woman in 1957. Redding and his partner, Pandora Jansson, chase a seductive serial killer who can ride The Shimmer across decades. The stakes turn brutal when Jack, whose wife and child died in a crash the previous Christmas Eve, faces a terrible choice: help his grandfather catch the killer, or change time itself and try to save his wife and child.

When two plane crashes set off a spellbinding chain reaction of murder, inadvertent kidnapping, corporate corruption, and financial double-dealing, it’s not enough that Niceville detective Nick Kavanaugh (ex–Special Forces) has to investigate. He and his wife, family lawyer Kate, have also just taken in brutally orphaned Rainey Teague. Something bothers Nick about Rainey --- and it isn’t just that the woman in charge of attendance at Rainey’s prep school has disappeared.

A boy literally disappears from Main Street, while an audacious bank robbery goes seriously wrong, triggering a disastrous cascade of events that ricochet across 20 different lives over the course of just 36 hours. Nick Kavanaugh and his wife, Kate, find themselves struggling to make sense not only of the disappearance and the robbery but also of a shadow world, where time has a different rhythm and justice is elusive.