Holly Hernandez, voted "Miss Bright of '79" and valedictorian at her previous school, is excited to start fresh at Flatbush Technical High School, one of the most competitive public schools in New York City. She'll be one of thousands; anonymous. But her dreams of a normal school life disappear when her mother, a homicide detective, has to investigate the murder of Mr. Friedman, the social studies teacher.

One of her classmates, Xander Herrera, quickly becomes the primary suspect. The tall, awkward boy is socially inept, but Holly doesn't think he's a murderer. She is intent on exonerating him"¬‚¬"but he wants nothing to do with her. To Xander, Holly is the overly enthusiastic student who always sits in the front row and answers all the teachers' questions"¬‚¬"correctly. He hates perky people!

Eventually cleared of the crime, Xander is determined to find the killer before Holly. As they race to solve the case, their separate investigations lead to a slew of suspects, including another teacher seen arguing with Friedman and a mysterious person named Steve who met with him several times before his death. Could it have been a disgruntled student? Ultimately, a trophy for a disco-dancing contest leads the intrepid young detectives to the Mission Venus nightclub and a murderer intent on killing again!