A strict teacher left five high school students in the classroom after school as punishment, but only four made it out alive. The fifth, Simon, a school outcast who brutally took revenge on his abusers on the Internet, revealing their most ugly secrets, was found dead. The police have no doubt that this is murder. Everyone is under suspicion, because everyone has something to hide.But which of the four boys and girls is the killer?Is Bronwyn a straight A student entering the Ivy League? Eddie the high school belle, the blonde shampoo commercial?Nate the juvenile delinquent on probation?Cooper the rising baseball star with the face and figure of Captain America, idol girls?Each of them had their own reasons to get rid of Simon. But who went to the crime?