Emily Foster wants to make restitution for a past mistake, and flipping houses seems like the path to her goal. But contractor Jake Braden hates Emily's plan to modernize the old house. But the cost of fighting for guardianship of his late sister's twelve-year-old twins forces him to take the job. When a hidden door and faded love letters connect the house with the Underground Railroad, Emily and Jake embark on a mission to uncover the fate of the young lovers.