Before mystery shopper Josie Marcus can say "I do" she must solve a matrimonial murder to keep her in-law from becoming an inmate...

As a bride-to-be, Josie's latest assignment is a gift—mystery shopping flower and cake vendors for a popular St. Louis wedding website. She even meets another bride, Molly Deaver, at the local florist. Turns out, Josie and Molly have a lot in common, including the groom! Molly has been stalking Dr. Ted for months, but after his high-maintenance mother, Lenore, confronts the faux fiancée, everyone believes Molly is history. Instead, she's murdered and Ted's pistol-packing mama is cuffed for the crime.

While it's tempting to leave her future mother-in-law behind bars, Josie knows she and Ted can't get married until Lenore is freed. It's up to Josie and her amateur sleuthing skills to unwrap this case, clear Lenore's name, and unveil the real killer…or her wedding bells could soon become death knells.