nostr:npub19rzt690quu3zvak0gln9mp09q7kszx6gaarse39gnfxy5tp9a4zqhna7f4 "An electronics expert creates a huge bookie broadcast system for his crime boss, and takes over operations when his boss is murdered. His greed leads him on a deadly destructive path." 

There's a trailer that explains.

https://www.imdb.com/title/tt0042176/