Kim Young-ha, president of Sindal Industries, runs over a female mannequin with his car. The mannequin looks exactly like Jung-im, a girl he killed a month ago. From that day on, strange things happen at Young-ha's house.

Princess Geumsung desires after General Kim Mu-young and plots to destroy his family. She buys off his house servant and charges his wife Bo-ok of debauchery and drives her out. She also poisons his two children, Jin-young and Jin-sik. Bo-ok, who has lost everything, becomes a fox and starts taking vengeance. Once she has had her revenge, she dies in the arms of her beloved husband. General Kim realizes his foolishness and enters mountains with his wife's body.

Eun-ji, Mal-suk, and Da-hi live in the dorms of Han-yang Hospital. A series of strange occurrences happen. In the midst of these happenings, Eun-ji surprisingly discovers in her room a necklace she gave to her old boyfriend. In the past, Eun-ji and Baek-chu, the boyfriend, loved each other. But when Baek-chu got severely burned, Eun-ji left him. Baek-chu came after Eun-ji trying to kill her. He missed a step and fell into the ocean and died. With a foreboding premonition, Eun-ji goes to the villa she and Baek-chu frequently stayed in the past. Eun-ji discovers Baek-chu there alive. Eun-ji is thrown into a fire by Baek-chu. When she is half-dead, Baek-chu pulls her out and throws himself into the fire and dies.

As the tragic war of fratricide is drawing to a close, a special agent nicknamed Dokbul, Kang Cheol-gu, is given an intelligence mission to identify and confirm the enemy's unusual movements. While on a mission, Cheol-gu infiltrates the enemy's camp alone and accidentally witnesses a bloody scene of massacre of civilians. He saves the only survivor, Hwang No-in, and is hinted that the enemy's plot is very dangerous. Cheol-gu approaches Mi-young, a People's Army nurse, to extract information, but is exposed to the enemy and escapes a crisis after a fierce battle. In the end, thanks to Cheol-gu's persistence, Mi-young realizes the illusion of the liberation struggle they are calling for, and transforms into Cheol-gu's collaborator to stop their horrific plot, germ warfare, and carries out the mission. However, the result of this tragic war is only futility. A war of illusions where more is lost than gained, and in the end, even the nickname Dokbul sheds hot tears.