一名官司胜率10%的生计型律师被卷入偶然承接的命案当中，一夕之间成了旷世天才诈骗犯“大老鼠”。为了保命并守护家人，他将揭发算计着滔天阴谋的特权阶层真面目。

前途无量的射箭好手多烈在学校有如局外人般低调，一心一意只专注于他的兴趣。某天，他意外地捲入校园红人泰铉的恶作剧裡，这使他的射箭学业岌岌可危，眼看泰铉毫无悔意，深受其害的多烈决定要设法解开误会。明明知道泰铉的存在就像是恶魔在身边，但多烈却不自觉地深受吸引…

讲述一名笨拙的绑架犯金明俊（尹启相 饰）绑架了11岁天才少女崔露熙（全俞娜 饰），却意外卷入另一场风暴之中，为追查真相，二人联手合作的故事。

该剧根据同名小说改编。故事以临时结婚服务为背景，正元（孔刘 饰）第一次婚姻失败后通过临时结婚服务认识了第二任妻子仁智（徐玄振 饰），某日湖面飘着一个行李箱，临时结婚服务背后的故事就此展开。

During the later years of Goryeo Dynasty (918-1392), a talented martial artist is murdered. His resentment makes him born again as Bulgasari, a monster that grinds and eats up iron. The monster takes his revenge on the traitors responsible for his death.

Hye-ryeon suddenly loses her parents and stays in the Black Rose Castle alone. One day, she says the castle is haunted and asks for help to friend Ji-suk. Ji-suk goes to the castle with boyfriend Yeong-uk, a newspaper reporter. Just as Hye-ryeon has said, they see a ghost, but Yeong-uk feels that someone is playing a prank. He waits for the ghost in the woods, and when it finally appears, Yeong-uk fights it off. The ghost misses a step and falls off a cliff. It turns out Hye-ryeon has been suffering from a mental disease and has been playing as a ghost.