From the CBS website:
Wednesday, December 19, 10pm et/pt
Happily Never After
The CSIs find a woman's body crushed under an ice castle sculpture with only her glittering red shoes visible. The victim is known around town as the "Wicked Witch of the Upper East Side" and the CSIs must investigate a list of enemies to find the real killer. Meanwhile, the discovery of a teenager's body leads the team into the world of clandestine pop-up parties held by New York's Prep School students.