This movie is an incredibly uncomfortable watch and does not the viewer ease up and seek some comfort or lightness, even for a second. The sense of anxiety, foreboding and dread just grows over the course of the movie and you're convinced something terrible is awaiting and about to reach its peak.
Also, I can't believe it took me this movie to realize that Vikrant Massey is one of the most phenomenal actors of his time. Wildly under-rated, this guy.