Long-arm quilter Harriet Truman and her quilt group the Loose Threads set off for what should be an enjoyable week of stitching at the Angel Harbor Folk Art School, where member Lauren Sawyer is attending a two-year program in part to quiet the accusation that she copies other people’s work.

It appears Lauren is up to her old tricks when Harriet's Aunt Beth announces she’s seen Lauren’s quilt in a museum in Europe. Lauren believes Selestina Bainbridge, owner and teacher at the school, is the one who copied her and insists Harriet prove it. When Selestina dies, Harriet must unravel the clues to exonerate her friend.