CSI: Crime Scene Investigation Season 5 Episode 5

Grissom and Sara investigate the murder of a woman after a swap party where the married couples in the neighborhood meet and switch partners. Nick & Warrick investigate the murder of a landlord killed by a band saw. With the help of a crime scene cleaner, they find there was more to their crime scene than they first thought. Ecklie is promoted and Catherine wants a promotion to day shift supervisor.