Bastard

 was a featured Thriller Webtoon created by Youngchan Hwang and Carnby Kim; it concluded on March 20, 2017. The original Korean Webtoon premiered on Naver and concluded on April 29, 2016.

Synopsis
There is a serial killer in my house!

Related

 * Sweet Home: a Thriller Webtoon by the same creators.
 * PIGPEN: Same author