Stage director Wu Hoi-fai and actor Chiu Kin-tong have some good ideas for their new show A Day: it centres on a tram ride - from Kennedy Town to Shau Kei Wan - that stretches over a single day during which the driver contemplates his life and the city's history through colourful anecdotes.
The pair also have plenty of original material to work with, having spent three months trawling through references about local tramways and old street life and talking to retired tram drivers and tram enthusiasts.
What they don't have, however, is a proper script.
'It's indeed challenging and risky not to have a script beforehand,' says Wu, a drama lecturer at the Hong Kong Academy for Performing Arts (APA), weeks before the curtain rises.
'But for the stage, literal interpretation isn't the only approach when delivering sentiments and messages.'
That is something he learned at the Central School of Speech and Drama at the University of London, where he graduated with a master's degree in dramaturge last year. Wu says inspiration for his stage work comes not only from reading stories but observing daily trifles.