Two male prostitutes are found dead, one in a night club and the other in his own home. They both worked for Lady Heather so Gil Grissom and Jim Brass pay another visit to her house. Catherine, while processing the house of the second victim, receives a phone call from her daughter Lindsay who is stuck in her dad's sinking car alone. Things get more complicated when Lindsay's father is later found dead from a bullet wound. Sara is given the case.