Grissom and Sara investigate the murder of a woman after a swap party. The married couples in the neighborhood meet and switch partners. With the help of a crime scene cleaner, Nick and Warrick find there was more to their crime scene than they first thought. Catherine wants a promotion to day shift supervisor.
Elenco: Ted Danson , Elisabeth Shue , George Eads , Jorja Fox , Eric Szmanda , Robert David Hall , Wallace Langham , David Berman , Elisabeth Harnois , Jon Wellner , Jon Wellner , Larry Mitchell , Lauren Lee Smith , Laurence Fishburne , Liz Vassey , Louise Lombard , Lyndsy Fonseca , Paul Guilfoyle , Ted Danson , Wallace Langham .