PERFECT FAMILY tells the story of Sun Hee, an exemplary student who always ranks at the top of her class and comes from a happy family. However, her perfect life is shaken after the sudden murder of her friend, Kyung Ho.
In this drama, Park Ju Hyun plays Choi Sun Hee, while Kim Byung Chul and Yoon Se Ah portray Sun Hee's adoptive parents, Choi Jin Hyuk and Han Eun Joo. Additionally, Choi Ye Bin and Lee Si Woo will each play Lee Soo Yeon and Ji Hyun Woo, while Yoon Sang Hyun and Kim Myung Soo will portray Choi Hyun Min and Lee Sung Woo.