Someone’s got Terry McCaleb’s number. A veteran FBI profiler, McCaleb (Eastwood) is unrelenting in his pursuit of justice and unequalled in his success at tracking and catching murderers.

But as he closes in on his latest adversary – a psychopath dubbed "The Code Killer" by the media – McCaleb is felled by a massive heart attack and forced into early retirement.

Two years later, a beautiful stranger (De Jesùs) reveals a secret that compels McCaleb to re-examine his recovery: his life was saved by someone else’s death – the victim of a murder that remains unsolved.

Against the advice of his cardiologist (Huston) and with the help of an eager neighbor (Daniels), McCaleb literally puts his life on the line to track down a murderer who has forced him to take this case personally.

He’s a heartbeat away from catching the killer.