A protagonist walks into a top-secret workplace, and no one reacts. We get a quick [[{{Montages}} montage]] of people doing technical-looking things and glimpses of weird stuff while the spectator walks around in silence, goggling at it all, and still no one reacts.

Only when the audience has had a complete lab tour does anyone notice the visitor, and then the other characters' response indicates whether it is a good lab or an evil one.

This is most common in the {{Premiere}} of a SpeculativeFiction series. Maybe a NaiveNewcomer discovers that his new office is considerably stranger than he expected. Maybe some ordinary guy accidentally stumbles onto a secret lab belong to the [[BigBad villain]] or AncientTradition, and swiftly stops being ordinary. Either way, the audience gets an introduction to the show's favoured brand of {{Phlebotinum}}. Extra points if at some point the intruder is shown distorted on the other side of some sciencey looking glassware.

An UnguidedLabTour can also happen any time a new villain or secret organisation is being introduced to the show. Often an occasion for ExactEavesdropping. See also SwissCheeseSecurity. Sometimes used with the ClipboardOfAuthority.

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!!Examples:

[[foldercontrol]]

[[folder: Anime and Manga]]
* Rinslet from ''Manga/BlackCat'' sneaks into Tornero's lab to steal information and discovers human experiments that look like chimeras.
* Team Rocket in ''Anime/PokemonTheFirstMovie'' when they sneak onto the secret island and discover the cloning lab that Mewtwo built there.
[[/folder]]

[[folder: Film]]
* Film/JamesBond does this on occasion, though most of the time he's impersonating someone who has a reason to be there.
* Pretty much how the portal to John Malkovich's psyche is discovered in ''BeingJohnMalkovich''.
[[/folder]]

[[folder: Live Action Television]]
* ''Series/{{Torchwood}}'':
** The episode "Everything Changes" used this, after Gwen bluffs her way into the Torchwood base, with the subversion that all the other characters ''did'' notice her, they were just pretending to not see her until they couldn't keep it up anymore and burst out laughing.
** The episode "Random Shoes" does it again with Eugene, although this time they honestly ''don't'' notice him because he's a ghost.
* Came up a couple of times in ''Series/TheXFiles'', although these weren't so much secret ''labs'' as academic or government labs doing secret ''things''.
* ''Series/TheProfessionals'' episode "Involvement" features Doyle's girlfriend wandering into the top secret security organisation [=CI5=] and eavesdropping on an interrogation.
[[/folder]]

[[folder: Video Games]]
* ''VideoGame/PerfectDark'': [=dataDyne=] Central, Area 51, the Pelagic II.
* ''VideoGame/FalloutNewVegas'': As long as you're not too badly regarded by the NCR, you can easily sneak into Hoover Dam's facilities, including the turbine chambers, the armory, the offices, and the barracks without anyone even asking who you are or making you relinquish your weapons. If you so wanted, you could probably plant a few bombs and cripple the region (although there's no quest to do so).
[[/folder]]

[[folder: Real Life]]
* Probably not all that uncommon in real life, at least for university laboratories.
[[/folder]]


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