Set in 1979, the story follows Mia, a trauma survivor, and Ben, her tough yet devoted neighbor. Initially clashing over Mia's fear of control and Ben's protective nature, their bond deepens into romance. Ben proves his love by supporting Mia's dream to study architectural drafting in the city and promising an equal marriage. Together, they plan to build a home with an "open door," symbolizing a relationship rooted in trust and freedom.