When the CSI team investigates the brutal murder of a family, they trace the killer to the house next door, which might belong to the “Dr. Jekyll” serial killer.

The CSI’s lives are on the line as they close in on the elusive Dr. Jekyll, and more than one member of the team may not live to see his…

A teenager is found murdered on a construction site. Grissom, Sarah, and Warrick follow the lead of blood on a hammer. Nick, with an assist from Catherine, tries to find…