* The title is incorrect: You might have misremembered or misspelled the title.
* The information is outdated: The information you're looking for might be outdated, and the film or series might have been lost or forgotten.
To help me find the correct information, please provide:
* Any other details you remember about the film or series: Like genre, plot summary, language, or anything else that might help identify it.
* The original source of the information: Where did you find the name "Fu xin de ren xu ji - 1973"?
With more information, I can try to find the correct title and cast information for you.