After a fun night out, Morna Brennen walks into an icy parking lot one dark Minnesota winter and disappears. When body parts begin showing up in the area, police must decipher cryptic clues to understand what happened, who did it... and why.

Gunshots rip through the icy Idaho air, leaving a young woman gunned down in her doorway. Left behind: shell casings and a trail of footprints in the snow. Police must piece together the clues to catch the shooter in this coldest of crimes.