The original run of films lasted between 1997 and 2003[2] and had 19 films.[3] which means that the original Troublesome Night spawned more sequels than any other horror film at the time. The first six films were directed by Herman Yau but after that he lost interest and producer Nam Yin kept the series alive.[4] A twentieth installment was released in 2017 to celebrate the 20th anniversary of the first film.
^Hammond, Stefan (2000). Hollywood East: Hong Kong Movies and the People who Made Them (illustrated ed.). Contemporary Books. p. 100. ISBN9780809225811.
^Hughes, William; Punter, David; Smith, Andrew (2016). "Asian Gothic". The Encyclopedia of the Gothic. United Kingdom: Wiley-Blackwell. p. 49. ISBN9781119210467.
^Rowan, Terry (2015). Halloween A Scary Film Guide. p. 192. ISBN9781312867277.
^O'Brien, Daniel (2003). Spooky Encounters: A Gwailo's Guide to Hong Kong Horror. United Kingdom: Critical Vision. p. 168. ISBN9781900486316.