Upbeat cancer survivor Lydia and her pragmatic sister, Margaret, start a "Knit to Quit" group in their Blossom Street yarn store in Seattle, bringing in a delightful assortment of customers for weekly self-help sessions, including a local baker who wants a baby as much as Lydia does, a super-stressed chocolate magnate who takes the knitting class after his doctor suggests it, and a young woman who is trying to quit obsessing about a broken engagement.