Yes it look a long time to watch this and this is one of its kind movie in Bollywood .Easily one of the greatest thrillers ever made in Bollywood.. Keeps you guessing every moment. Sriram Raghavan has been doing this long before he made Andhadhun.. The sound effets and other technical aspects are amazing . The only drawback is the performance of Neil as the movie rests a lot on him and he could bring alive the character that much. Apart from that it's a full marks to every department in the movie.