(Full Synopsis)

Set in contemporary Korea, the musical unfolds around a family searching for their missing mother, uncovering long-overlooked truths about her life and their own.

The story begins at Seoul Station, where a mother goes missing in the crowd. As days pass without any trace, her family—children and husband—desperately search for her, posting notices and retracing her steps.

Through the search, each family member begins to recall memories of the mother they thought they knew. These recollections gradually reveal a deeper, more complex individual—one who silently endured illness, hardship, and emotional neglect while devoting herself entirely to her family.

As the family pieces together fragments of her life, they confront their own indifference and self-centeredness. They come to realize that they had taken her presence for granted, valuing her only in relation to their own needs.

The narrative ultimately becomes a reflection on motherhood, loss, and regret, emphasizing the universal realization that the mother, long seen as a constant, is also a person who needed care, understanding, and love.