Nell Endicott and the other Seaside Knitters are helping their friend Gracie Santos open the Lazy Lobster and Soup Café on Pelican Pier. They do however take a break to attend a special yacht club dinner held to honor Gracie's aunt-wearing their finest knitting creations.

Under the full moon, a local scuba dive club witnesses a blood-red Ferrari flying off a cliff and onto the granite rocks below. Gracie's aunt was behind the wheel, and it was murder. Gossip builds, rumors circulate, and the Seaside Knitters try to figure out a killer's strange pattern...