When an elite homicide detective begins receiving anonymous evidence from crimes that have not yet occurred, he races against time to stop a series of murders—only to discover that the sender may be the final victim of a future conspiracy willing to erase history to protect itself.

SYNOPSIS:

Detective Ethan Cole has built his reputation on solving the impossible. Methodical, emotionally disciplined, and driven by an unwavering belief in evidence, Ethan has never allowed intuition to influence his work. Yet beneath his calm exterior lies an unresolved wound—the disappearance of his wife, investigative journalist Maya Cole, five years earlier.

When Ethan is assigned to investigate the execution-style murder of an unknown man, he discovers a mysterious envelope addressed specifically to him. Inside is a photograph of the victim standing alive at a train station the following day.

Assuming it is an elaborate deception, Ethan begins an investigation that soon defies reason. More anonymous messages arrive, each accurately predicting future deaths. Acting on the information, Ethan prevents one murder, only to discover that reality itself begins to shift. Family photographs change. Memories disappear. Conversations never seem to have happened. The closer he gets to the truth, the more unstable his world becomes.

With the help of forensic audio specialist Dr. Nora Chen, Ethan uncovers fragments of a hidden communication system capable of transmitting information across possible futures. Every message is part of an experiment known only as The Echo Protocol.