It is a sequel to last year"s mega hit 2 Harihar Nagar by Lal itself, which itself is a sequel to the all time super hit Harihar Nagar of Siddique Lal team. In Ghost House Inn has the same cast like 2 Harihar Nagar, like Mukesh, Siddique, Jagadish, Ashokan, Rohini, Lena, Reena Basheer, Rakhi, and Harisree Ashokan. Rohini plays the wife of Mukesh, Lena of Siddique, Reena of Jagadeesh and Rakhi as Asokan's wife.
This story takes place not in Kochi, but in Ooty. The four friends decides to spend a vacation with Thomaskutty, in a bunglow brought by him with the money that he has got in the climax of 2 Harihar Nagar. As they celebrate a ghost from their past surfaces unleashing horror and more fun for the audiences. Classmate fame Radhika plays the ghost in the film. The rest is the suspense..And imagine about the treat of comedy in the film. The slightest thought of it brings laugh..so nothing more..just wait and see.