It's Okay to Not Be Okay

Moon Gang-tae lives with his older brother Moon Sang-tae, who has autism. They frequently move from town to town ever since Sang-tae witnessed their mother's murder. Gang-Tae works as a caregiver in a psychiatric ward at every place they settle in. While working in a hospital, he meets a famous children's book writer, Ko Moon-young, who is rumored to have antisocial personality disorder. Circumstances lead Gang-tae to work at the OK Psychiatric Hospital in the fictional Seongjin City, the same city where they all lived when they were young. Meanwhile, Moon-young forms a romantic obsession for Gang-tae after finding out that their pasts overlap. She follows him to Seongjin, where the trio (including Sang-tae) slowly begins to heal each other's emotional wounds. They discover many secrets, seek comfort from each other. and move forward with their lives.