Cut to Panchgani. Cyrus (Saif Ali Khan) arrives at Dinshaw's house early in the morning just out of the blue and offers to become his assistant. He spends a year with them and in the process a strange sort of friendship develops between Katy and him.
In case you want to read between the lines then there is a hint of a physical relationship between the two but no real intimate scenes. She sends Cyrus to her father-in-law's house in Mumbai with some money for him. Cyrus befriends the father. He visits the old man a few times.
Slowly as the film proceeds you realize the twist in the story and are bound to be even more convinced about not taking people at face value. To say anything more would take out the suspense and thrill element in the film.