Grissom and his team investigate a murder suspect who is caught red-handed -- burying the victims -- while Catherine and Warrick take on the case of a woman found dead in a hotel spa. As Grissom, Nick and Sara investigate the seemingly clear-cut murder case, Grissom questions the simplicity of the evidence when he discovers that the suspect burying the victims is the brother of a convicted felon. Meanwhile, Catherine and Warrick must determine if the woman found dead in the hotel spa was the victim of negligence, foul play or heat-induced natural causes.

Grissom and Catherine investigate the apparent violent death of a woman found in a sandbox. Their investigation leads them to the underground world of s and m clubs. Meanwhile, Warrick and Sara are called to a crime scene to investigate a shooting, which initially appears to have taken place during a robbery.