It stars Imaad Shah, Nishikant Kamat, Rajvvir Aroraa, Tisca Chopra, and Satish Kaushik in the lead roles.

Professor Anirudh (Nishikant Kamath) strongly believes in science, and for him, things that don't have scientific explanations do not exist.

His wife, Dr. Mira, who's also a professor at the same institute, suggests he change his room, to which Prof. Anirudh refuses and tells him to stop thinking about Gaurav.

In their review, they commented, "The highpoint of the film lies in the fact that it explores paranormal activity without abandoning science and rationality.

In his review for Bollywood Hungama, Taran Adarsh wrote, "404 is yet another innovative story with a taut screenplay, riveting direction and applaud-worthy performances as its strong points.

"[5] Writing for Rediff, Preeti Arora similarly praised the movie's spooky cinematography and applauded director Prawaal Raman for not resorting to gimmicks such as "cuss words and mindless obscenities" while criticizing the melodrama and the length of the climax.