About the love story of Han Se-gye (Seo Hyun-jin) who is an A-list actress. She is known as a troublemaker and the object of many rumors. Her life is a mystery, but, in reality, she suffers from an unusual phenomenon. At a certain point every month, her appearance changes to a different person. Seo Do-jae (Lee Min-ki) who is an executive director of an airline company, seems perfect. He is attractive and intelligent but he actually suffers from prosopagnosia. The two eventually fall in love
'The Beauty Inside' is a 2018 South Korean television series based on the 2015 film of the same name; starring Seo Hyun-jin, Lee Min-ki, Lee Da-hee and Ahn Jae-hyun. It aired on JTBC from October 1 to November 20, 2018.