Max puts CSI on lockdown when evidence in a new murder tips Grissom and Sara to a new suspect in the crime lab. Also, Folsom and Allie investigate a series of chilling killings at a dilapidated clown-themed hotel.

When the CSIs are called to investigate human remains found in a convention center owner's bathtub, Sara and Grissom use the case to get close to attorney Anson Wix's star forensic expert witness, just days before David Hodges' trial begins.