Book editor Emily Bryant finds herself unexpectedly in the charming town of Cascata on California's Lost Coast, holding the keys to her grandmother's rambling Victorian mansion. While sorting through her grandmother's things, Emily learns that she must edit old manuscripts to inherit the estate. It's a strange request from a family member who was basically a stranger.

Emily quickly realizes that there's something different about these manuscripts. Any changes she makes come true. At first, she embraces the gift. She has a chance to help characters find true love or chart a new course for their future. But then things go terribly wrong. Her edits have the opposite effect. The sweet and funky seaside community of Cascata is reeling from the chaos Emily has created. Everything she thought she believed about her family and her past is in jeopardy, and no amount of editing can fix the damage she's done.

Then she finds one last manuscript. If Emily can get this edit right, maybe she'll have a chance to create a new narrative for herself and everyone around her.