Fifteen years after being stranded on a remote island, an aspiring singer reenters society — stopping at nothing to pursue her dream of becoming a diva.

Ji-woo, an outcast at a prestigious private school, meets Hak-sung, the school janitor who is actually a mathematical genius who defected from North Korea.

Seon-hee is a high school girl who used to tell lies to get her friends attention. She leaves Seoul guilt-ridden when her friend Jung-mi kills herself because of Seon-hee's lies. In the countryside where no one knows her, Seon-hee begins a new life as Seul-ki.

Pastor Park is head of a religious investigation center that exposes cults and cult leaders. While looking into a suspicious new religion called Deer Mount, he slowly uncovers clues that connect this cult to a series of mysterious cases of missing teenage girls when a body is found inside a damaged tunnel beams. He begins to uncover dark secrets surrounding this cult and its enforcer Na-han.

Young-ju lives with her little brother after losing her parents in a traffic accident. She would even give up her studies to care for her brother. But as life gets more difficult, Young-ju decides to visit the perpetrator in the accident that killed her parents.

A corrupt prosecutor plans for revenge against Hyun-jung's crime organization by using her loyal partner, Sang-hoon.

Two best friends, So-yool and Yeon-hee, dream of becoming the top artists in Seoul together. But their friendship doesn't last long as Yoon-woo, So-yool's first love and songwriter, falls in love with Yeon-hee and her voice. So-yool's feeling of jealousy and inferiority towards Yeon-hee grows by the day, and she eventually makes a drastic decision to bring the two lovers down.

To save a girl in danger, a priest and deacon jump into a mysterious case.

In a tilting and subsiding town, everybody has left. Jae-ah is still waiting for her brother to come back. She lives in the shadow of fear, as her house begins to tilt.

Soojeong believes that she is cursed: she can’t remember her schoolwork, she has near constant pain in her stomach, her little brother has stopped growing and real estate prices are plummeting. There seems to be a crack in her mind, the size of the hole in her heart left by her missing dog. While her parents vigorously pray and cover everything in green, her brother patiently follows her everywhere, trying to bring Soojeong back to reality.