Green Door is a 2019 Taiwanese horror thriller drama television miniseries directed and co-written by Lingo Hsieh, based on the novel of the same name by Joseph Chen. The miniseries stars Jam Hsiao, Kuo Bea-ting, Enno Cheng, and Hsieh Ying-xuan. It follows a troubled psychologist who returns from the United States to set up a psychology clinic called Green Door in Taiwan, where mysterious patients and uncanny events shed light on his murky past.