A Halloween pumpkin patch maze becomes a lot scarier when the mummified remains of a young girl are found in it. Booth and Brennan go to investigate, and are shocked to find that the victim has been dead for over a year. To make the situation even creepier, a second body is found at a Halloween amusement park funhouse, again mummified, but this time dead for approximately two years. Booth and Brennan get wind of a third missing girl and link her to the person who killed the other two girls. They must now race to find the killer before he or she strikes again this Halloween.