Cora Larsen is a Victorian tailoress on Regent Street, where she creates dresses that are "the toast of the Season." She is a gifted maker of men's suits too, not that many are willing to have a woman take their measurements.

Lord Galavyin believes in marrying for love, not convenience. He feels bad enough about the privilege of being a baron and refuses to consider an arranged marriage. One day, he walks through Cora's door to collect a dress and is smitten with her forward-thinking social ideals. But, despite their growing friendship, he cannot persuade Cora to ignore the difference in their status and address him by his first name--Grant.

When Cora loses the lease on her shop, she thinks it is simply a coincidence that the building belongs to Grant's family. She doesn't yet know she is in love with a man whose mother is the worst enemy one can imagine.

Grant will do anything to keep Cora safe and employed, even if it takes helping her without her knowledge. What follows is a game of cat and mouse that will test Cora's resolve and Grant's love to their limits.