CSI: Crime Scene Investigation: Built to Kill (Part 1)

An aspiring dancer is murdered backstage during Cirque du Soleil's KA show. The team must go backstage to investigate. Then, an investor is shot to death during a rooftop party. Grissom is confused after receiving an exact miniature replica of the crime scene he is investigating. After going to a John Mayer show with Nick, Catherine is drugged and raped. Instead of calling the crime lab, she acts as her own CSI.