I mean there are several stories of these deeply implanted KGB sleeper-type agents in real life. Sure, not serial killers (who knows), but everything else is qu

I mean there are several stories of these deeply implanted KGB sleeper-type agents in real life. Sure, not serial killers (who knows), but everything else is quite authentic. Here is a couple from Germany: https://www.theguardian.com/world/2013/jan/15/married-pair-russian-spies-germany https://www.theguardian.com/world/2013/jan/15/married-pair-r... They had an oblivious daughter and everything.