A tragic accident kills 48 people, leaving the survivors and those connected to the event forever changed. Lee Gang Du, once a hopeful soccer player, now struggles with physical and emotional pain while caring for his sister and paying off a debt. Ha Mun Su, a survivor of the accident, is haunted by nightmares. She lives above her mother’s bathhouse and creates architectural models for safety in major building projects. Years later, a construction project at the accident site stirs painful memories for all involved. As they cross paths, they help each other heal and find new hope for the future.