The third prison of death, where only vicious criminals who do not have a sense of law or common sense are being kept. A new era of power opens when Lee Tae-sik, the nation's former boss entered the office. Soon, the new warden, Jo Pyeong-ho, ends the evil without blood or tears, and begins to imprison the prisoners terribly, including Lee Tae-sik.

Have you had a bitter experience because of a stranger you let in your house? Don’t be a good Samaritan inviting a stranger into your house recklessly. Chang-soo invites a stranger man to his house, whom he met through his photography hobby club. The two drinks together and fall asleep. When Chang-soo wakes up, he finds himself tied up and there stands his wife looking scared.

The story of an ordinary woman with dream walking ability to control other people's dreams against the backdrop of a noisy city in a serial murder case and a serial killer who can control other people's dreams.