The director has been successful in attaching an emotion for the month of October inside the audience. It's a big deal by any standards.
Throughout the movie the effortless acting and calm direction touches you bit by bit and by the end of the movie you wdn't even know it but that feeling is very much inside and stays long after the movie ends.
Varun Dhawan has given some good performances before but even he surprises with the ease with which he portrayed Dan. But it's not just him but every other actor present in the film who has delivered and made the film so peaceful despite all the chaos portrayed.
Go ahead and watch !