Book that im reading

Im reading the book called "Little Secrets Over the Edge" and this book is about 5 friends that all have different personality: Kelly with a cruel personality, hot-tempered Tom, Zoey is risky, caring and curious Alison, and Chad with a trustable personality.  There are twisted friendsips, sweet revenge, unexcepted betrayals. As time pass by, will each of them become a better person?