Part 3/9:
As the story progresses, police officers Gurum and Jean Juan investigate a skeleton discovered at a construction site. Unraveling this mystery ties into Gurum's parents' past—the unresolved murder case afflicting her with pain and unanswered questions. Meanwhile, director Jung Kwan is enmeshed in a conspiracy involving human trials and scientific manipulation, desperately trying to keep the truth hidden. The complexity of relationships and power dynamics unfolds, revealing the urgency to cover up past failures.