South Korea, 1993. An agent of the National Intelligence Service is sent to Beijing to infiltrate a group of North Korean officials with the ultimate goal of obtaining information about their nuclear program.

An ambitious journalist who witnessed a hit-and-run years ago reboots his investigation led by newly emerged clues. As he beats the clock to save the only survivor after her sudden disappearance, layers of unimaginable dark truths around a corrupted system start peeling.