 Ashley Anders, a best-selling porn star, is found dead in a bush by two teenagers. Human tissue, which belongs to the owner of her studio, is found under her fingernails. Furthermore, a recording of him making a threat about her lead the CSIs to believe that he is hiding something. Unfortunately, an acid spill partially destroys the audio tape. To make matters worse, Eric Delko is being investigated as he was the last person in the evidence room before the accident. With IAB s Rick Stetler conducting his investigation about the destruction of evidence, the CSIs have to watch each others  back while trying to find the young actress  killer.