Two murders. The evidence? A dead man's thumbprint.

Detective Mike Canyon enjoys life with his wife and three children in Avoca, Oklahoma until the murders of two prominent citizens instill fear in the community. A warning, "Don't be late," inflames Canyon's resolve to identify and nab the killer. Then the bloody thumbprint found at the scenes leads to an impossible source.

Geoffrey Norkum poses as a Texas Ranger and shelters in a friend's home to get near his mark. After the kidnapping and poisoning of Canyon's wife ends in a fatal police shooting, Norkum's actions prove his guise conceals more than a killer's identity. They reveal the shocking truth of inconceivable reality conceals