Su-yeon, a cellist in an orchestra led by her fiancé and conductor Sung-jin, disappears one day, leaving behind only a video recording. Sung-jin is devastated over the loss of Su-yeon, but feels a strong attraction to Mi-ju, a cellist who fills in for his fiancée. Then one rainy night, Sung-jin...
While investigating a terroristic threat that goes viral online, Korean authorities discover that a suspect has recently boarded an international flight bound for the United States. When a healthy passenger on the same flight suddenly dies a gruesome death of unknown cause, panic erupts both...
Pil-ju, an Alzheimer's patient in his 80s, who lost all his family during the Japanese colonial era, and devotes his lifelong revenge before his memories disappear, and a young man in his 20s who helps him.
Journalist Sang-jin uncovers the existence of the so-called 'Troll Factory' while investigating an online public sentiment manipulation story, and is confronted with an unbelievable truth.
Seo Chang-dae, an ambitious political campaign strategist who ends up having ideological differences with his present client, receives a lucrative offer that will put his loyalty under the microscope.
Hwang Yeo-rae, a once-popular actress, faces a turbulent marriage and yearns for her old career. When she moves in next to Kim Beom-woo, her biggest fan, a desperate plan to regain her freedom and revive her career unfolds.