Three couples at a destination wedding in Portugal find themselves torn apart in this story that's more soap opera than thriller. Rachel and Noah were best friends in college teetering on couplehood, but now Rachel is married to Jack and Noah is married to Paige and the four are still extremely close. At Jack's brother's wedding, the over-the-top bride, Ali, rubs everyone the wrong way and Rachel begins to wonder if Ali isn't more calculating than anyone realizes. 

The Guilt Trip is a story built on rumor, innuendo, and the suspense of who's sleeping with whom. While I enjoyed the characters, the story mostly just winds its way slowly until the dramatic climax, which was a bit overdramatic for my taste.