“Given the lack of suspense over the killer’s identity, this horror film’s main draw then is to entertain you through thrills resulting from his pursuit. Can the visually challenged hero, Gautham (Udhayanidhi Stalin), do what the police aren’t able to? Can the damsel in distress, Dahini (Aditi Rao Hydari)—who doesn’t show the slightest effort to save herself—be saved by her ‘daredevil’ suitor?”