CSI: Crime Scene Investigation: Bittersweet

Nick discovers pieces of a decomposing body in an art exhibit made up of discarded concrete blocks and his colleagues launch an investigation. The case reminds Sara of one involving a married couple who abused and killed girls before disposing of their corpses in similar fashion - and discovers one of them has recently been released on parole. Meanwhile, Greg and Morgan look into the death of a former model who appears to have drowned in a vat of chocolate. Guest starring Chelsea Hobbs (Make It or Break It) and Stacy Haiduk (Prison Break)