Description: 1990. A 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. Then, in a stakeout, Seok
manages to shoot dead one of the murderer's underlings. Cloaked in the
man's clothes, however, is Seok's son, now dead by the hand of his
father ... Meanwhile, in the megapolis Intercity, the chief of police
is kidnapped right in front of his heavy security detail and the
culprit leaves another pendant at the scene. The chief's daughter,
Heesu, a talented criminal psychologist quickly joins the investigation
to find her father. Soon, Seok discovers that he and Heesu share an
uncanny bond... Source: imdb.com