Detective Herb Curwain is finally promoted to the Homicide Unit and with this comes the assignment of an unsolved case he knows well — the disappearance of a young woman in Pickering, Ont. There’s evidence this may be connected to one man and a string of serial killings, but when red tape threatens to get in his way — Curwain does whatever it takes and changes the way serial killers are investigated in Canada to this day.

When a man is reported missing, things don’t add up. Edmonton Homicide Investigator Bill Clark takes charge and before long finds himself deep in the world of Internet homicide and the sickening potential that the murder was filmed and for sale to the highest bidder.

When leads dry up on a double homicide, Hamilton Detective Don Forgan turns to the only potential witness, the murder victim's three-year-old son.

Detective Rod Piukkala faces a gruesome crime scene, a bomb threat, and a killer threatening to strike again. The victim's family helps change Canadian parole laws forever.

In 2011, a massive fire tore down a 19th century heritage building and threatened Toronto’s downtown core. The high-profile case still haunts detective Debbie Harris.

The high-profile case still haunts detective Debbie Harris.

The high-profile case still haunts detective Debbie Harris.