Probably the worst of Harry Alan Towers' exotic Eastern-shot quickies. The effort of gathering together "guest stars" Dan Duryea, George Raft, Brian Donlevy & Christopher Lee doubtless drained Towers and director Jeremy Summers of the stamina, inspiration (or budget) to then make a half-way decent film (we also get disappointingly little of Klaus Kinski, who's probably only in it because he was already in Hong Kong under salary to Towers filming 'Sumuru' at the time).
So for most of its length we just get a bemused-looking Bob Cummings wandering or getting chased through various Hong Kong tourist locations and night spots to a tiresomely energetic score by Malcolm Lockyer (and Inpector Rupert Davies even more tiresomely quoting Shakespeare every couple of minutes) before the Dragons finally converge upon the spot for the underwhelming finale.
So for most of its length we just get a bemused-looking Bob Cummings wandering or getting chased through various Hong Kong tourist locations and night spots to a tiresomely energetic score by Malcolm Lockyer (and Inpector Rupert Davies even more tiresomely quoting Shakespeare every couple of minutes) before the Dragons finally converge upon the spot for the underwhelming finale.