The film is set in modern-day Bangkok where the production team behind the television series Ghost Day is told by their show is going to be cancelled.

To stop the end of their program, the staff decide to find a real haunted area to run the next episode live and, after viewing a video online by ghostbusters Mhen (Apisit Opasaimlikit) and Chiad (Padong Songsang), they decide to approach them to do a deal.

Mhen and Chiad have brought along a real female ghost named Choompoo who appears right in front of Mhen, Chiad and Noo Na and starts roaming around the place until she manages to escape the place.

Things later on gets serious and complicated for them when a ghost that haunts the said haunted are the production team is running in, possesses the show's director, Pom (Boriboon Chanruang) and driving away most of the crew, leaving the rest of them to deal with the ghost possessing Pom.

Ghost Day was shown at the 16th annual Puchon International Fantastic Film Festival.