Yoon Yeon Joo, a crippled mess of a broken family, suddenly finds herself surrounded by friends she's never talked to nor met before the unfortunate crash that killed her mother. 

Amidst it all, she finds herself drawn to Hansol, a 17 year old counterpart of what was supposed to be the infamous serial killer of Jungdong Province.

And with the continuous shade of mystery surrounding Yeon Joo and Hansol, it's only a matter of time before they bump into the worst thing to come itself.