While Lacy and Cole are the primary characters in this book, there are two other couples highlighted as well: Cole's sister and younger brother. The book is all about second chances and learning from your mistakes. I've read just about all of Palmer's books and she likes her men to be big in stature, masculine--not pretty boys and many times not handsome by 'normal' standards. The women are a little too forgiving for my tastes but she always pulls off a great read in the end.
The introducing of so many characters in the beginning is a little roughly written and difficult to follow but it quickly all comes together and you become deeply involved in all the characters dilemmas. I highly recommend this book.