Shades of the Heart (2019) on Netflix

Plot summary

Chang-seok's marriage ended abroad, and he comes back to Korea to publish a novel built from his own life. In a cafe inside a subway station in Euljiro he meets Mi-young, a woman without much direction who remembers their time together. His editor Yoo-jin, who speaks plainly about her history, shares a cigarette with him. He then runs into Sung-ha, a photographer looking after his sick wife, who holds on to hope that a mystical remedy can cure her. At a bar he talks with Joo-eun, a former model who now tends bar and tries to recover memories her customers lost in a car accident.