The autopsy confirms that the witness was murdered. Bing, a major crime investigator, has doubts about the Parenteau case.

As Bing and Catherine accumulate more and more evidence on Alexander's innocence, the investigation becomes more complex.

As the noose tightens, Louis Bachand cracks under the pressure and reveals to Catherine what happened the evening of the accident.

After 15 years of sacrifices and disproportionate fights to exonerate her son, will Catherine see the light at the end of the tunnel?