Dream Logic

"Dream Logic"
Fringe episode
In the opening scene, a man hallucinates his boss as a deformed monster, leading to the boss' murder
Episode no.	Season 2 Episode 5
Directed by	Paul A. Edwards
Written by	Josh Singer
Production code	3X5105
Original air date	October 15, 2009
Guest appearance(s)
Kevin Corrigan as Sam Weiss Ravi Kapoor as Dr. Nayak Travis Schuldt as Agent Kashner Michael Cerveris as the Observer Stephen Dimopoulos as Mr. Lamia Steven Garr as Rob Rosiello Nico Ghisi as Young Peter Emily Holmes as Jill Leiter Jovanna Huguet as Diana Lamia Jarrett Knowles as Zach Miller Drew Nelson as Carl Langdon Jim Thorburn as Greg Leiter Alex Zahara as Detective Green
Episode chronology
← Previous "Momentum Deferred" Next → "Earthling"
Fringe (season 2) List of Fringe episodes

"Dream Logic" is the fifth episode of the second season of the American science fiction drama television series Fringe, and the 25th episode overall. It was written by Josh Singer and directed by Paul A. Edwards. The episode follows several people seemingly dreaming while still awake, leading the Fringe team to investigate the dangerous side effects of a sleep study.

On its initial American broadcast on October 15, 2009 on the Fox network, "Dream Logic" was watched by an estimated 5.78 million viewers. It received mixed reviews, with multiple critics noting it was considerably worse in quality than the previous week's episode while at the same time praising the case's ties to Peter's past as well as the return of Sam Weiss.

In Seattle a man named Greg Leiter (Jim Thorburn) hallucinates that his boss and coworkers are demons, leading Greg to attack and murder the boss. Greg is hospitalized and falls asleep for sixteen hours; when Olivia (Anna Torv) and Peter (Joshua Jackson) interview him in the hospital, he tells them his boss was a demon out of a bad dream before suffering a seizure and having his hair turn white. Walter (John Noble) posits that Greg died from "acute exhaustion". However, believing Seattle to be like the mental institution, Walter desires to go home to Boston and run tests on the corpse from there.

Olivia and Peter learn Greg was being treated for a sleep disorder, and that his dreams had involved demons until they stopped several months ago. Another hallucinating victim turns up in Seattle and dies. The Fringe team discover that both victims had a brain–computer interface chip attached to their thalamus, the part of the brain controlling dreams. Broyles (Lance Reddick) and Nina (Blair Brown) reveal new information leading to the sleep researcher Dr. Nayak (Ravi Kapoor) who implanted the chips. Another victim named Diana (Jovanna Huguet) hallucinates at a restaurant and kills a coworker before similarly dying of exhaustion.