Guilt starts off with a group of friends getting ready for an eighteenth birthday party. Life is exciting and the world is at their feet.

Jump forward twenty years and they are all struggling with where they are at. Tommy has just got out of prison. Lani, the girl he loved at school, is unhappily married to a cheating husband. Another friend Julia has only just moved out of home to live with her fiancé. And Paul - the high school hero of whom everyone expected great things - is living a totally ordinary life of marriage, mortgage, kids. Where did it all go wrong?

Something happened at that party that changed their lives forever. This agonising novel examines the layers of loyalty and jealousy, the headiness of youth and the inescapable taste of guilt.