We've done divine overlords and Djinns. What's next? Ah, ghosts.
Perhaps Mr Bachchan will write about this phase in his autobiography one day. For now, we don't know what might have driven him to explore the occult so comprehensively with four supernatural or divine characters so far.
He plays the ghost of the late Mr Kailash Nath who is befriended by a young boy, becoming his imaginary friend in a literal sense.
Kookiness factor: 9