Never saw the movie, but still agree with your analysis of the mermaid symbolism.
San Francisco is a dark place. Even WaPo concurs.
https://www.washingtonpost.com/wp-dyn/content/article/2007/07/27/AR2007072700920.html
link from last bread
>>4939876 lb
>Born This Way Foundation (BTWF) is an American non-profit organization founded in 2011 by singer Lady Gaga. Established at Harvard University,
>BTWF works in partnership with the Berkman Center for Internet & Society at Harvard University, the John D. and Catherine T. MacArthur Foundation and The California Endowment.