How to identify a potential Spam Email?

I received this in my spam email. Can anyone offer input. I believe this is an old scam. Is any of this possible.

I will be direct. You often watch adult content, and I caught you masturbating

We all do it from time to time. How I did this Your router was vulnerable. I was able to inject some code into the firmware, and every

device connected on the network, including phones, was compromised, Then 1

set every device available to record with the camera only when you watch

adult content. I also got your contact lists, phone numbers, emails, social

media contacts, and here is the deal. If you don't pay me $5800

USD worth

in Bicoin, I will send your masturbation video, search history, and all your private chat to all your contacts and all social media

[Re-Titled by Moderator]