Swap Meet

Sara and Grissom investigate when a woman is found dead after a swap party in which the married couples in the neighborhood get together and swap spouses. The evidence they collect shows that the victim had several partners during the night which leads them to a neighbor’s back yard. Meanwhile, Warrick and Nick investigate the murder of a video arcade landlord and find that there’s more to the crime than they originally thought. Meanwhile, Catherine tries to get a promotion in order to become part of the day shift.