Overview
In 1990, number of children suddenly disappear. Meanwhile, the Ministry of Defense selects an elite group of scientists for a top-secret mission. Then, 30 years later ... The year is 2020 on a reunified Korean Peninsula. A string of murders is committed against retired scientists. The Special Investigations (SI) unit staffed by a crack team from the former North and South Koreas and outfitted with the latest technology is brought in to investigate. The killer, however, far from being deterred, taunts them with a signature pendant at every murder scene. In an act of devilish boldness he even kidnaps the son of the investigation team's leader, Seok
| Actor | Age then | Age now | |
|---|---|---|---|
 | 33 | 56 | |
 | 28 | 51 | |
 | 26 | 49 | |
 | 40 | 63 | |
 | 25 | 48 | |
 | 60 | 83 | |
 | 27 | 50 | |
 | 61 | 84 | |
 | 33 | 56 | |
 | 29 | 53 |