It depicts the story of Seon Hee and her family, who seem happy and perfect to anyone, but one day she experiences the death of her friend, Kyung Ho.
(Source: Korean = news.koreadaily.com || Translation = MyDramaList)
~~ Adapted from the webtoon "Perfect Family" (완벽한 가족) by written by Nyangpa (냥빠) and illustrated by Joo Eun (주은).