St. Valentine's Day is approaching, and residents of Tallulah Falls, Oregon, are in a romantic frame of mind. One blushing bride has commissioned Marcy Singer to embellish her mother's vintage wedding gown with jewels for her Valentine's Day wedding. Marcy is delighted -- until she turns out to be a bridezilla-to-be. Then the future mother-in-law is found stabbed to death outside Marcy's shop on her way to deliver the jewels, and some of them are missing.