CSI: Crime Scene Investigation
Turn of the Screws
TV Flash files “Turn of the Screws” as hour 90 of 337 in the TV Flash guide — CSI: Crime Scene Investigation (2000–2015) on CBS, season 4, episode 21, aired 2004-05-06, 60 min.
From the desk
How this hour is filed
This leaf is S04E21: listed hour 90 of 337 in the CSI: Crime Scene Investigation guide, hour 21 of 23 in season 4. It aired 2004-05-06 (60 min). The listed hour before it is “Dead Ringer” (S04E20). Next is “No More Bets” (S04E22).
Catalog log
Broadcast listing — not a TV Flash recap.
A roller coaster runs off its track, leaving six people dead. The CSI team investigates whether this was an accident or foul play. One of the deaths, however, is not what it seems, and this takes the case in an unexpected direction. Meanwhile, Catherine and Warrick investigate the death of a 13-year old girl whose body was dumped unceremoniously outside town.
Viewer FAQ
Where does Turn of the Screws sit in the CSI: Crime Scene Investigation guide?
S04E21 is listed hour 90 of 337 — hour 21 of 23 in season 4, season 4 episode 21.
When did CSI: Crime Scene Investigation S04E21 air?
Turn of the Screws aired 2004-05-06 and is listed at 60 minutes.
Do I start with Las Vegas CSI or a spinoff?
The original Las Vegas series is the mothership — stylish forensics as nightclub cinema. Miami, NY, and Cyber are franchise mitosis, not the first language.
In the series
Why this series still plays
Las Vegas criminalists solve murders with stylish science that made lab work look like nightclub cinema. Anthony E. Zuiker's CBS hit turned the who into the how, spawned a franchise mitosis machine, and put the "CSI effect" into real courtroom talk. 2000s procedural TV as global brand architecture.
The first useful image is glass, not a confession. Las Vegas criminalists solve murders with stylish science, moody lighting, and forensic close-ups that made lab work look like nightclub cinema. Anthony E. Zuiker's CBS series premiered October 6, 2000; the original Las Vegas run lasted through 2015, with a later revival limited series. William Petersen and Marg Helgenberger anchored early years of sunglasses, evidence, and gravitas beside George Eads, Jorja Fox, Paul Guilfoyle, and Eric Szmanda. The show turned…
Open the CSI: Crime Scene Investigation package · Season 4 hub
Filed against
- William Petersen as Gil Grissom
William Petersen’s Gil Grissom made CSI: Crime Scene Investigation into nightclub cinema for lab work — Las Vegas criminalists, stylish science, Anthony E. Zuiker’s CBS hit that turned the who into the how and put the “CSI effect” into…
- Marg Helgenberger as Catherine Willows
Marg Helgenberger’s K.C. made China Beach treat Vietnam trauma and R&R as the same weather — Dana Delany’s nurse, evacuation-hospital ensemble — then turned CSI’s Las Vegas lab into nightclub cinema. Late-80s quality drama with aching…
- George Eads as Nick Stokes
George Eads played Nick Stokes on CSI: Crime Scene Investigation — Las Vegas criminalist heat in the lab-as-nightclub years, when stylish science turned the who into the how. Franchise mitosis waited in the wings. TV Flash files him as…
- Jorja Fox as Sara Sidle
Jorja Fox’s Sara Sidle made CSI’s Las Vegas lab a human weather system — criminalists solving murders with stylish science, Anthony E. Zuiker’s CBS hit turning the who into the how, a franchise mitosis machine, the CSI effect in real…
- Paul Guilfoyle as Jim Brass
Paul Guilfoyle played Jim Brass on CSI: Crime Scene Investigation, 2000s Las Vegas criminalists solving murders with stylish science that made lab work look like nightclub cinema. Anthony E. Zuiker’s CBS hit turned the who into the how,…
- Eric Szmanda as Greg Sanders
Eric Szmanda worked the graveyard shift as Greg Sanders on CSI: Crime Scene Investigation — Las Vegas lab-as-nightclub, the who turned into the how, a franchise mitosis machine. Anthony E. Zuiker made science stylish; Szmanda made the lab…