Here is the best way to watch the original 2020 K-drama:
Moon Gang-tae (Kim Soo-hyun) is a health worker at a psychiatric ward who has spent his life caring for his autistic older brother, Moon Sang-tae (Oh Jung-se). He has never lived for himself. Ko Moon-young (Seo Yea-ji) is a bestselling children's author with antisocial personality disorder. She is rich, cruel, and obsessed with Gang-tae.
