What do a kayak, a wine barrel, and a tractor have in common? They're all weapons in the hands of three determined women! When the FBI asks the Sleuth Sisters to attend a retreat for Love-Able Ladies, Barb opts out, unwilling to spend a weekend celebrating the joys of being some man's little wife. Retta is eager to go, since the venue is a swanky vineyard inn on the Leelanau Peninsula, north of Traverse City, Michigan. Never a fan of large groups of strangers, Faye would rather stay home, but since Retta needs a wing-woman, she doesn't get a choice. Their assignment is to assess the possibility a retreat attendee might cooperate in an FBI investigation. Dina Engel is launching a line of high-fashion clothing, and the feds hope that means she's separating herself from her drug king-pin father. The sisters will try to get to know Dina, hint the Bureau is interested in a meeting, and provide her with a safe way to contact them. Though the setting is lovely and the inn is all that Retta imagined, things quickly go bad. Murder, kidnapping, and a mysterious plot involving Dina's fashion show plunge Faye and Retta into danger.