Im Sang-mi (Seo Ye Ji )and her family move from Seoul to the suburb to the suburb of Muji County, after her father's business fails.
The religious cult Goseonwon has most of the county in its grasp, with a large number of followers. The cult disguises itself as a peaceful church but dark secrets, torture, violence and murder lurk underneath.
Sang-mi's brother Sang-jin, who is limping since birth, is mercilessly bullied and assaulted at school. Because he can no longer take it, he commits suicide by jumping off his school building. This tears Sang-mi's family apart. Sang Mi's mother soon looses her sanity.
Taking advantage of their fragile state, the cult's leader lures her parents into Goseonwon. Despite her repeated objections of something wrong with the cult, her father is fully brainwashed. With him in the clutches of the cult and her mother mentally unstable, Sang-mi is trapped and unable to escape.
Three years later, her classmate Han Sang-hwan, the son of the county chief who is now a law student, and his two friends Jung-hoon and Man-hee have a chance encounter with Sang-mi. She whispers to them, "Save me." Sang-hwan, determined to right the wrongs of his past, grows determined to save her and expose the cult to the county. He is joined by Dong-chul, Jung-hoon and Man-hee in his mission, unaware that the cult is just the tip of the iceberg. Using their abilities, the characters try to outwit each other in the tug of war over Sang-mi.
