A cold, foggy night. The dead body of a well-respected principal is discovered lying frozen on the highway. He drowned and it's obvious something untoward has happened. But after several months the police know nothing more than this and can't explain how his corpse came to rest on the cold hard pavement. Frustrated and impatient with the lack of progress, the victim's sister asks Justin Thyme for help.
Once a highly talented investigator, Thyme has been forced out of the Royal Canadian Mounted Police by the sudden onset of PTSD. Unemployed and living alone he's learning to control his illness and carve out a new life for himself. Thyme is at first reluctant to get involved. But encouraged by close friends, he accepts the offer and begins to untangle the mystery and learn more about his new self.