A mystery crime thriller about a man who calls himself Master and sends mysterious texts with images of young women that they don't remember taking. A teacher and a former detective become involved in the escalating series of crimes.
Seoul, South Korea, 1997. When the young but extremely anxious student Jin-seok, his parents and his successful older brother Yoo-seok move to a new home, mysterious and frightening events begin to happen around them, unexplained events that threaten to ruin their seemingly happy lives. Unable to understand what is happening, Jin-seok wonders if he is losing his mind.
A missing brother. Hide and seeks codes. A shocking truth for two different families and the struggle to save their families from someone who is already living inside their house.
Jae-hyuk is a pharmaceutical worker for a medical supplies company. When a series of dead bodies are found floating in the Han River. The public is shocked to discovered that the deaths are related to a fatal outbreak of virus-infected mutant parasitic horsehair worms, called 'Yeongasi', that can control the human brain. Those infected shows symptoms of hunger and thirst, hence jumps into the river to combat dehydration. Whilst the authorities work to find a cure, Jae-hyuk struggles to save his family when they also exhibits similar symptoms.
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.
On the run from a dogged internal affairs agent, a corrupt cop reluctantly teams up with a defiant teen to unravel a conspiracy -- before it's too late.
Deok-su is a grumpy landlord of a small apartment in Aridong who always pushes the tenants to pay their overdue rent. One day, people in the town, especially the elderly go missing one by one and are eventually found dead. Though the whole town is threatened by a mysterious serial killer, nobody, not even the police have a clue who the criminal is. Then, an old ex-detective Pyung-dal suddenly appears and asks Deok-su for help, saying he can catch the murderer together as he thinks there is already someone suspicious.
Jae-Hyeok lives with his mother, his sister-in-law and nephew Min-Jae in a small Korean town. He is dating Yeon-Joo, while working at the local nuclear power plant. Meanwhile, Pyung-Sub works at the same nuclear power plant. He is worried about conditions there, but nobody in the government listens to him. An earthquake strikes the small town where Jae-Hyeok lives and causes explosions at the nuclear power plant. The situation quickly spirals out of control, leading the entire nation to panic. To prevent another nuclear disaster, Jae-Hyeok and his co-workers return to the nuclear power plant.
A former agent from the North Korean intelligence and a senior member of the South Korean security services conduct a secret mission to prevent the breakout of a nuclear war on the Korean Peninsula.
Kyung-min lives alone in a one-room apartment. One day, she found a trace of a stranger breaking into her room and soon a mysterious murder case begins to unravel
