"Maggie Messina knows that knitting is enjoyable, so she's happy to visit two sisters, Rose and Holly Piper, to teach them some simple stitches with the Black Sheep knitters. The lesson goes well, but the knitters are troubled about the sisters living alone in a remote corner of Plum Harbor. Their fears are realized when Holly is attacked in her greenhouse and the building set ablaze. Rose is found nearby, her dogs running wild. While everything seems to be unraveling, the knitters will need to keep their wits as sharp as their needles to prove Rose's innocence and stop a killer from striking again."--Publisher description.