Decay is a 2012 British independent horror film written and directed by Luke Thompson (of the University of Manchester), set at the Large Hadron Collider in Switzerland.

[4] The film was released online for free under the Creative Commons CC BY-NC license, shareable and remixable.

[5][6] Decay was premiered on 29 November 2012 and centres on the idea of the Large Hadron Collider transforming scientists into zombies.

[7] Thompson, a physics doctoral student, came up with the idea of the film while he was walking through the maintenance tunnels at CERN and began thinking that it would be a good location for a horror movie.

[6] In an interview with Wired, he stated that the film was initially started for fun, but that it was also an opportunity to "do some satirical commentary on various aspects of people’s perceptions of science".

[5] A security guard is walking along the maintenance tunnel of the Large Hadron Collider (LHC) at CERN when he turns around, meets an unidentified man whom he recognizes, and informs him that he is not supposed to be down there.

The Director-General overrides his concerns and informs him that the LHC would usually work once the problem is fixed and finds the Higgs boson is of utmost importance.

The Director-General realizes that Connor, James, and Amy are listening to them, and he asks the security guard to shut the door.

Since the LHC is now off, they can use the elevator in the maintenance tunnel to get out; they believe that the team led by Dr. Niven is dead due to radiation.

As they walk through the maintenance tunnel, they are attacked by the team's technicians led by Dr. Niven, and Kate is captured.

Finally, the results of Amy's simulations come up; they indicate that the boson radiation has the capability to destroy the human brain.

Amy and James head back into the maintenance tunnel, where they find the Director-General's security guard killed.

Amy and James return to the mainframe server room, where Connor informs them that only the Director-General has the right to delete the data.

She calls up Lisa on her mobile to inform her that the Director-General is responsible for the deaths at CERN, but she is redirected to her voice mail.