In a world shaken by an epidemic of madness that spreads through speech, Murat is the only immune person. As he searches for the secret of his mysterious immunity, his “hot skull", he has to leave the safe zone and embark on an adventure within the ruins of Istanbul.
As Si Tu Mo's graduation is nearing, she is confused about her future plans. Her ordinary days are suddenly shaken up when the genius Physics student Gu Wei Yi appears in her life. The two accidentally end up living together and chaos begins.
Gil Oh-so, an employee at a cleaning company, meets Jang Seon-gyul, the boss of the company. The two are diametric opposite when it comes to cleanliness. With the help of Oh-sol, Seon-gyul faces his mysophobia and falls in love with her.
After the death of her husband, a grieving widow and a tormented ex-cop investigate a series of murders apparently related to the Universal Expo held in Seville in 1992.
When Lori Vallow's kids vanished, the search for them unearthed a trail of suspicious deaths, a new husband who shared her doomsday views — and murder.
After learning heretical teachings about the Earth and the Sun, a child prodigy searches for his master's hidden research while evading the Inquisition.