The body of a young girl is found frozen in ice. John Cardinal (played by Billy Campbell) is asked to take the case because he was involved in the investigation of her disappearance. The autopsy results lead Cardinal to believe a serial killer is at work.

The Algonquin Bay Police Department attempts to make amends with the community for the botched investigation into Katie Pine's disappearance. Detective Lise Delorme risks exposure of her investigation in an attempt to catch Detective John Cardinal in the act of a crime. Written by Martin Gauthier

Concerned that Cardinal is onto her, Delorme digs into the reasons behind her secret investigation.

A criminal breaks into Eric and Edie's basement and finds Keith; issues between Cardinal and Delorme threaten their partnership; Cardinal takes risks in the investigation.

A discovery by the police direct the investigation toward Eric and Edie, leading to a confrontation between Cardinal and Eric.

Cardinal wonders if he and Delorme are still missing a piece of the puzzle; Delorme concludes her investigation of Cardinal.