In March 1984, the kidnapping of a Japanese candy executive was just the opening move in one of the most bizarre and unsolved criminal campaigns in modern history. For seventeen months, a group calling itself the Monster with 21 Faces, named after a fictional literary villain, terrorized Japan's food industry with poison threats, taunting letters, and a ghost-like operative known only as the Fox-Eyed Man, who was spotted monitoring police radio frequencies during live sting operations. The legal window has closed, the perpetrators can never be charged, and the identity of the Fox-Eyed Man remains unknown to this day. Explore the case, the theories, and the strange silence that ended it all at www.stillunexplained.com.