In June 1993, the body of an 18-year-old TAFE student is discovered in a rain-soaked ditch. Investigators are baffled as the victim count increases.

Investigators have a hard time identifying a male torso that washed up under a wharf in Towlers Bay. As detectives look into it, they discover it is linked to another murder.

When a family of four is found dead and the killer's attempt to incinerate the evidence fails, investigators follow a trail of clues and ballistic evidence to catch the culprit.

An early morning routine walk along the beach in 1995 uncovers a human skull. The investigators are stuck when no dental record exists.

When a mother and her two children are found brutally murdered, investigators try to figure out whether it was a robbery gone wrong.

A murderer keen on leaving clues for the cops comes unstuck when investigators examine a handwritten note and the entomology of the insects found on the victims.