Jack already lost his best friend when a patient pulled out a gun and shot him. And though he helped the police uncover a murderous conspiracy at Newton Memorial Hospital and identify the three people behind the murder, the mastermind still escaped justice.
Now, Simon Lagrange is back and bent on revenge.
Jack first suspects something's not right when stable cardiac patients start dying. The press learns about the fatal trend, and the beleaguered doctor feels the heat until the plot against him is uncovered. Simon Lagrange, not yet done, has an even more ruthless plot in mind this time - one that threatens both Jack's life and his reputation. Jack must rely on his nurse Kate to uncover Simon's connection and stop the plot before more die.