India, Feb. 21 -- One of the most unsettling sub-genres in the crime thriller genre is undoubtedly the case of missing persons. There's nothing more disturbing than the sudden disappearance of your loved one, a human being vanished without a trace. They leave behind unanswered calls, half-lived lives, and families stuck in time. These cases don't just end with finding the culprit; they get extended to find out what happened in the hours no one saw. Indian crime thriller series have mastered this chilling terrain, giving us some of the best series based on missing person cases.

Whether it's the fog-drenched villages of Punjab in Kohrra, where cops deal with pressure to solve the NRI murder case, or the bureaucratic intensity of the capita...