Mystery's most engaging set is at it again, and crime doesn't stand half a chance. This time out, they're about to discover that antiquing can be murder. Nan and Bert are wandering the flea market shopping for each other's birthday gifts, when cantankerous antiques dealer Franklin Haggerty winds up with a tag on his toe. To make matters worse, Bert's daughter Ellie and her boyfriend, Chris, are the prime murder suspects. Delving into the world of vintage curios, the twins assemble a list of eccentrics with the means and the motive to kill Haggerty -- including his oddly merry widow!