Gautham and Deeksha, along with their daughter, move into a bungalow located in an isolated area.

[2][3] A critic from The Times of India gave the film three out of five stars and compared the film to a thin crust pizza: "In that sense, you could call Kalam a thin-crust Pizza — has everything you expect, but somehow doesn’t seem fullfilling".

[4] The Hindu wrote that "Save for the twist that makes you turn back to the screen with mild interest, Kalam is a rather uninspired horror show".

[6] A critic from the Deccan Chronicle wrote that "One cannot help but reminded of Karthik Subburaj’s thriller Pizza as most part of the film unfolds inside a bungalow.

The saving grace is the unexpected twist in the climax and kudos to Robert Raaj for maintaining the suspense factor intact till the end".