In general, this series involves a lot of incest. The characters in this book are infected with an extraterrestrial disease that gives them superhuman abilities and increases their fertility. They have to actively restrain themselves from raping people because of this heightened libido. Two of the main characters are 16-year-old girls. Once they are affected by the disease, they begin craving and pursuing sex with adult men. One even starts trying to initiate sex with her father, but she is interrupted. Towards the end of the book, the two girls and their father are kidnapped. The kidnappers have other hostages, mostly women and children, whom they rape repeatedly and leave for dead. One child hostage is described as having mutilated genitals.