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Gotham Knights

How to Open the Secret Door to Langstrom's Lab

Nathan Garvin

On this page you’ll find information about solving the Crime Scene in Kirk Langstrom’s lab during 1.1 - Kirk Langstrom.

As you attempt to solve Cases (read: quests), you’ll occasionally have to investigate Crime Scenes. This involves scanning various objects by highlighting them with the DualSense-Stick-L to gain additional information about them. Once you’ve studied all the objects at a particular crime scene you’ll have to solve a puzzle, usually by matching various crime scene points of interest together by using the information gathered to infer which ones are logically connected. This is done by highlighting one category of object and selecting it by pressing DualSense-ButtonSquare / Xbox-ButtonX-Filled, then highlighting and selecting other categories of object. If all else fails, you can blindly guess until you match the correct objects, but with this guide you shouldn’t have to!

(1 of 2) Follow some scratches to reach the lab,

Follow some scratches to reach the lab, (left), then use AR Targeting to find a hidden mechanism under the floor. (right)

After searching Langstrom’s office you’ll use AR Targeting to follow some scratches to Langstrom’s lab. At the crime scene, use AR Targeting to spot a “Hidden Mechanism” under the floor, then investigate the table to find various devices and potential codes. Just use the DualSense-Stick-L to survey the area and view various potential points of interest. Your goal here is to identify both the correct input device (either the thermostat, microwave or Langstrom’s tablet) and the secret password (possibly found on the sticky note, old movie poster or the calendar):

Which Input Device Unlocks the Hidden Door?

  • Thermostat
  • Microwave
  • Langstrom’s Tablet

What is Langstrom’s Secret Password?

  • Sticky Note
  • Old Movie Poster
  • Calendar

Once you’ve identified the three input devices and three potential codes, it’s time for some good old deductive reasoning!

(1 of 2) Select the bogus area code on the Sticky Note,

Select the bogus area code on the Sticky Note, (left), and the Microwave, as it’s the only potential input device with only three digits. (right)

How to Open the Secret Door to Langstrom’s Hidden Lab

The date on the old movie poster could be entirely coincidental - nothing particularly strange about a scientist being interested in schlocky old horror movies. The circled dates on the calendar are more intentional, but those dates could be circled for any reason. The bogus phone number, however, is more dubious - it’s both intentional and serves no other potential purpose. Since there are three numbers in the bogus area code, and there are three input spots on the microwave, the two seem to be a match.

Select the sticky note (highlight it and press the DualSense-ButtonSquare / Xbox-ButtonX-Filled button), then do the same for the microwave and voila - the secret door opens.

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Guide Information
  • Publisher
    Warner Bros Interactive Entertainment
  • Platforms,
    PC, PS5, XB X|S
  • Genre
    Action RPG
  • Guide Release
    20 October 2022
  • Last Updated
    10 July 2024
    Version History
  • Guide Author

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Gotham Knights is an open world RPG released on October 21st, 2022. Batman is dead and Gotham City is vulnerable, leaving the burden of its protection in the hands of four protagonists that you’ll have the opportunity to play as: Batgirl, Nightwing, Red Hood, and Robin, each with unique abilities and playstyles. As you play through the story you’ll be uncovering some of Batman’s last cases, leading to a conflict with the ancient Court of Owls.

This guide offers information for all of the essential aspects of the game, including:

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