Love Is Blue (2001)

Middle-aged Ma Zhongqi is the production manager of an advertising agency. He has separated from his hair-dresser wife, Jian Jia, and the two are planning to end their marriage of more than a decade. Jian Jia meets a strange boy who wears a wig, but wants to ask Jian Jia to do his hair. At first, Jian Jia thought he was playing a joke, but without hesitation, refused. The boy waited for her until she got off work; he told her that he had seen her in a magazine. Jian Jia saw that he had something [unspeakable?]. Jian Jia later learns that the boy is terminally ill, and he wants to ask Jian Jia to do his hair specifically for him because he wants to have good-looking hair and take an engagement photo with the girl he loves.

Unfortunately the movie Love Is Blue is not yet available on HBO Max.