Kim Sang-kyung

1986 Gyunggi Province. The body of a young woman is found brutally raped and murdered. Two months later, a series of rapes and murders commences under similar circumstances. And in a country that had never known such crimes, the dark whispers about a serial murderer grow louder. A special task force is set up in the area, with two local detectives Park Doo-Man and Jo Young-Goo joined by a detective from Seoul who requested to be assigned to the case.

A kidnapper disappeared 15 years ago without a trace. Five days before the case's statute of limitations expires, someone anonymously leaves a flower at the crime scene. A few days later, another kidnapping takes place using the same method on a similar target.

On Christmas Eve at Tower Sky, an ultra-luxurious building complex, a White Christmas party is held to dazzle its equally high-end tenants and VIP guests. Dae-ho, the manager of the building and single father, is forced to cancel plans with his daughter Hana to work the event. His Christmas is saved when Yoon-hee, the food mall manager with a secret crush on Dae-ho, offers to babysit Hana during the party. Meanwhile, Young-ki the legendary fire chief of Yoido Station has finally promised his first holiday date night to his long suffering wife. The party is in full swing with the spectacular sight of two helicopters flying overhead just to spray snow on the partygoers and make everything perfect. When unthinkable disaster strikes, Dae-ho and Young-ki must summon all their strength and courage to save the lives of thousands but at what cost to themselves and their loved ones?