Rachel Hawkins is back with her latest thriller, "Reckless Girls." The Agatha Christie classic "And Then There Were None" gets an update for the 2020s in this gripping mystery. A group of entitled 20-somethings head off on a luxurious trip to a remote tropical island with a downright eerie history. Soon, one vacationer disappears, and another turns up dead under suspicious circumstances. Now, the remaining members of the group must work together and reveal their secrets if they want to solve the case before each one of them gets picked off too.