What if a demented London cabbie called Dave Rudman wrote a book to his estranged son to give him some fatherly advice? What if that book was buried in Hampstead and hundreds of years later, when rising sea levels have put London underwater, spawned a religion? And, what if one man decided to questi...

What if a demented London cabbie called Dave Rudman wrote a book to his estranged son to give him some fatherly advice? What if that book was buried in Hampstead and hundreds of years later, when rising sea levels have put London underwater, spawned a religion? And, what if one man decided to question life according to Dave?