Film ini berdasarkan sebuah cerita asli oleh [[Raymond Wong (presenter film)|Raymond Wong]].<ref>{{cite book|last=Wilson|first=Staci Layne|title=50 Years of Ghost Movies|year=2007|publisher=Running Free Press|isbn=0-9675185-2-0|page=125}}</ref> Inspirasi Wong'sinspirationuntuk forfilm thetersebut filmdatang cameketika ondia adalam tripsebuah toperjalanan worshipuntuk hismenyembahyangi ancestorsleluhurnya, while hissementara familykeluarganya wassedang makingmelakukan preparationspersiapan.<ref name="Interview with Raymond Wong">{{cite video|people=Raymond Wong|year= 2008|title=An Interview with Raymond Wong|format=DVD|language=Chinese|publisher=Joy Sales Hong Kong|accessdate=31 January 2011|time=0:00:00-0:05:59}}</ref><ref name="Movie maestro">{{cite web|last=Cai|first=Natallie|title=Movie maestro|url=http://www.thestandard.com.hk/news_detail.asp?we_cat=16&art_id=128867&sid=38378541&con_type=3&d_str=20121203&fc=1|work=thestandard.com.hk|publisher=thestandard.com.hk|accessdate=19 February 2013|date=3 December 2012}}</ref>
