A woman (Lori Loughlin) and her friend (Sarah Strange) run an antiques shop and also get involved in solving murders. A woman (Jessie Fraser) brings into the shop a puzzle box belonging to her mother who has just died in a supposed accident. The next day she also dies in a similar accident. This film has the same formula as the other films in the series, though with a bit more story involving Lori Loughlin's family.