A serial killer is burning away the flesh of his victims with acid, leaving only the bones behind. The police turn to Hyun-min, a former forensic sculptor adept in reconstructing faces by examining and interpreting skulls. With the victim's bones in his house, Hyun-min's daughter begins to experience disturbing visions. As he races against time to find the answers and save his daughter, the deadly truth behind these victims reveals a sinister conspiracy that threatens everyone involved.

The President of South Korea races against time to prove the seal on documents from long dead King Gojong is fake by charging outspoken historian Choi Min-jae, and a descendant of the royal bloodline Kim Yu-shik, to find the long lost seal in order to prove that the Japanese claim to railroads is false, a claim that will stop the reunification of the two Koreas.

After much trials and tribulations, a man marries his first love. But when she gets pregnant, they find out that she has cancer.

A string of brutal murders targeting pregnant women mirrors the crimes of convicted serial killer Shin Hyun, who remains behind bars. Detectives Kim Mi Yun and Kang Tae Hyun take on the case, suspecting that Shin Hyun may be manipulating the copycat killings from prison.

On 31 January 1968, 31 North Korean commandos infiltrated South Korea in a failed mission to assassinate President Park Chung-hee. In revenge, the South Korean military assembled a team of 31 criminals on the island of Silmido to kill Kim Il-sung for a suicide mission to redeem their honor, but was cancelled, leaving them frustrated. It is loosely based on a military uprising in the 1970s.