Community service clean-up was supposed to be a tedious affair. But, when a young offender stumbles upon a bin bag filled with human remains, a quiet Highland village is thrown into chaos. The investigation leads DCI Jack Logan to a remote and nightmarish cottage, where a forgotten freezer holds a disturbing discovery: a full set of human fingers. As more body parts are uncovered, Logan and his team hunt for a killer with a gruesome obsession for collecting trophies. Across the vast Highlands, where secrets run as deep as the lochs, the team must piece together a jigsaw puzzle of horror that\’s as fragmented as the remains they\’ve found. But how do you solve a jigsaw when you can\’t see the picture on the box?