Welcome to the Marigold Mind Laundry where we wash away the stains from your heart. After young Jieun accidentally misuses her powers, causing her beloved family to vanish, she lives a million restless lives in search of them. Overnight, in the village of Marigold on top of a hill, she conjures up her Mind Laundry, where she cleanses painful experiences from the heart, transferring them into stains on a T-shirt and turning them into dazzling red petals. We meet five wounded souls: a frustrated young filmmaker; a tortured social-media influencer; a distraught mother who has discovered her husband’s other family; a young woman two-timed by her lover, and Yeonghui, a victim of bullying, who works as a delivery man to escape his pain in routine. After washing the pain and ironing their creases, Jieun discovers an astonishing revelation that will change her life.