When former prosecutor Bill ten Boom is tapped by the International Criminal Court --- an organization charged with prosecuting crimes against humanity --- he feels drawn to what will become the most elusive case of his career. Over 10 years ago, in the apocalyptic chaos following the Bosnian war, an entire Roma refugee camp vanished. Now for the first time, a witness has stepped forward: Ferko Rincic claims that armed men marched the camp's Gypsy residents to a cave in the middle of the night --- and then with a hand grenade set off an avalanche, burying 400 people alive. Only Ferko survived. Boom's task is to examine Ferko's claims and determine who might have massacred the Roma.