Monster House is a Manga/Manhwa/Manhua in english language, Manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

“As he approaches the dark, the monster that lays within is creeping towards him...” Kate is a detective who investigates monsters. He lives in a weird city - A robot's smile creeping in the darkness of a laboratory, a mysterious shadow appearing on the balcony, a blackhole that tears open the space around the corner of a street... Seeing more and more these weird phenomena appearing, people were on the verge of madness, yet only detective Kate is enjoying the adventure.