This was a really well done contemporary, perhaps domestic, thriller set during a wedding. The protagonist is quite relatable. The other characters are mostly varying degrees of suspicious which is appropriate. The wealth and class differences are well illustrated. Frank, Tammy and young Abigail being contrasted with the Gardners who seem frivolous and purposely unaware largely due to their extreme wealth. The twists and turns are executed well. I was gripped throughout. The concluding chapters are a bit underwhelming due to actually being denouement but without being segmented out like most of the other plot sections are throughout the book.