I Am Always Hers

The mysterious journey of Mr. Varun to Ooty on 12th July every year had rumbled his driver's brain with questions. He was ardent enough to find out reasons for Mr. Varun's travel to Ooty. And one fine day, he finds a diary of a girl in Mr. Varun's Audi.

Will this diary solve the mystery behind their travel to Ooty or will it add on a little more mystery?

Above all these, why is a girl's diary in Mr. Varun's Audi?