Yuna

Myeong-jun decides to kidnap Ro-hee to pay for his daughter's hospital bills. On his way, someone collapses before his car, which turns out to be Ro-hee. She doesn't remember anything, and Myeong-jun claims to be her dad and contacts her parents for the ransom but fails. He witnesses her parents' bodies being carried away at their house and leaves the scene. Ro-hee grows suspicious of Myeong-jun.

A tenacious investigator goes undercover at a securities firm to expose corruption, but her mission is complicated by its new CEO — her former lover.

When a raging flood traps a researcher and her young son, a call to a crucial mission puts their escape — and the future of humanity — on the line.