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First broadcast at 21:00 15 Jun 2010
The CSIs start to close in on Dr Jekyll, but the only person who can help them is serial killer Nate Haskell.
Watch the trailer for episode 11 of season 14 of CSI: Crime Scene Investigation.
Watch the trailer for episode 10 of season 14 of CSI.
The team are called to a murder scene, which they have visited more than once before.
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Channel 5 Broadcasting Ltd. 2014