Lewis: Season 5, Episode 3 - ProjectFreeTV

5 - 3: The Mind Has Mountains

After a student is discovered dead during a college clinical trial for a new anti-depressant, Lewis and Hathaway find it hard to work out the real reasons for the death. A second student's death ends up leading to the revelation that the trial's participants are all using the mind-altering drug ketamine which has left their minds dangerously blurred.