Forget about horror shows and movies showing creeking doors and jump scare moments... THIS IS REAL HORROR!!!
Every moment will give you chills down the spine especially the second episode where the revelation with each turning page of the diary not only shock you but also make you think... How could anyone do this and why all members of the family blindly followed the cult.....
By the end you will get a logical explanation of everything that has happened but still a lot of questions remain unanswered as there was no eye witness and it was a well-kept secret by the family....
Overall, this series is a must watch not only for the finess it was made with but also for you to understand that there is a fine line between faith and delusion....
P.S. The background score by A R Rahman makes your heart beat a little slower throughout the series.