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Grissom gets Dr. Langston's help to find the man who is carrying on the serial killer's work before the next victim is killed. The case will prove to be Grissom's last with the crime lab.


Alec Smight


Anthony E. Zuiker (created by), Carol Mendelsohn | 1 more credit »




Episode cast overview, first billed only:
William Petersen ... Gil Grissom
Marg Helgenberger ... Catherine Willows
George Eads ... Nick Stokes
Eric Szmanda ... Greg Sanders
Robert David Hall ... Al Robbins
Wallace Langham ... David Hodges
Lauren Lee Smith ... Riley Adams
Paul Guilfoyle ... Jim Brass
Laurence Fishburne ... Raymond Langston
David Berman ... David Phillips
Liz Vassey ... Wendy Simms
Jimmi Simpson ... Tom Donover
Katheryn Winnick ... Maureen Martin
Matt O'Leary ... Dan Forester
Mark Rolston ... Sheriff


Grissom takes his leave from a mostly grateful team and finds his successor by hiring criminology professor Langston, initially as consultant in the serial killer Nate Haskell and copy cat case, their last viz. first. Nate won't cooperate, but analyzing his eye-contact with students helps identify his cahoot and fancy forensics plus victim disposal routes analysis help track down the torture layer he 'inherited' from the original killer. Written by KGF Vissers

Plot Summary | Plot Synopsis


TV-14 | See all certifications »




Release Date:

15 January 2009 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


Katheryn Winnick has appeared in all 3 CSI series. See more »


The tracking shot of the camera on the jungle's trail disturbs the vegetation causing movement of leaves and small branches. See more »


Gil Grissom: A penny for your thoughts?
Dr. Raymond Langston: [Pointing up to where the Tom Donover was sitting] He was sitting right there. He was looking at me, I was looking at him. All I saw was another student.
Gil Grissom: That's all I saw.
Dr. Raymond Langston: I guess I'm tired of getting fooled.
Gil Grissom: People lie, Professor. The only thing that we can count on is the evidence.
Dr. Raymond Langston: Thank you for letting me help. It was...
Dr. Raymond Langston: Well, it was something that I really needed to do.
[Starts to walk away]
Gil Grissom: Hey
See more »

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