Horatio suspects that a disgraced graduate psychology student is killing the people who caused her to fail, and is leaving cryptic messages for the crime lab. However, could it actually be part of an even more sinister plan?



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Episode cast overview, first billed only:
Walter Simmons (as Omar Miller)
Melissa Walls
Stephen Madsen
Craig Potter
Janice Potter
Neal Brusatti


Jesse and colleagues receive an anonymous letter containing pieces of a murder scene & target's photograph, made by the left-behind remote control weapon's visor. Eric returns to CSI full-time. The victim's widower receives the clue to a next murder. The prime suspect was exposed by the first victim for cheating in a Dade university research project and fired by a panel. The panel seems to have comprised the other targets, one of which is chemically burned while under Boavista's protection. But she has a perfect alibi and the last crime strikes CSI HQ. Written by KGF Vissers

Plot Summary | Plot Synopsis


TV-14 | See all certifications »




Release Date:

24 May 2010 (USA)  »

Company Credits

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Technical Specs


Sound Mix:

(Dolby 5.1)


Aspect Ratio:

16 : 9
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Did You Know?


The poppy stamps shown are not actual stamps issued by the US postal services as they don't have a value or the country of issue written on them. See more »


Near the end of the episode, when everyone is seen collapsing for an unknown reason Calleigh Duquesne is seen in the hallway with no lab coat on collapsing. However a few minutes later when Eric Delko arrives to find the lab taken out, he finds Calleigh in her gun lab, with a lab coat on. See more »


Eric Delko: H, I heard about the shooting.
Lieutenant Horatio Caine: Yes, they used an automated rifle, no prints, no trace, not registered.
Eric Delko: Sounds personal.
Lieutenant Horatio Caine: Yes. We received a message before the shooting.
Eric Delko: A message? What, like though the mail?
Lieutenant Horatio Caine: They slipped it into the morning mail. Exactly.
Eric Delko: Why would they target us?
Lieutenant Horatio Caine: I think I just heard an "us" in there.
Eric Delko: Yeah, that's right. While I was gone, I realized this is where I want to be.
Lieutenant Horatio Caine: Then I have you full-time.
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User Reviews

Another Ultra-Dramatic Cliff-Hanger
4 May 2011 | by (United States) – See all my reviews

Yikes, they've done it again! The writers, to entice you to come back and join them again next fall - leave you hanging with a very dramatic scene. Usually they do it with one character if big trouble, but here almost the entire CSI crime-fighting team is left unconscious on the floor!!! (As someone who watches this solely on DVD, I'll have to wait until this season comes out on disc - bummer.)

Anyway, it's the normal riveting-last episode-type material. The episode also marks the return of series regular "Eric Delko" (Adam Rodriguez, who took much of the year off to act in another series). I suppose his return might mean the exit of someone else, but I hope not because I liked the new guys played by Eddie Cibrian and Omar Benson Miller.

The story centers around a woman graduate psychology student "Melissa Wall," played by Kristen Hager) who is sadistic and just plain evil, but a lot smarter than most of CSI's foes. How can they get her, and is there more here than meets the eye? (Of course!)/ I look forward to next season.

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