If you're into shows like Making a Murderer, check out Evil Genius. It's the story behind the people who were responsible for the pizza bomber in 2003, and briefly discusses their psychological issues.
I assume everyone has seen Breaking Bad at this point, but if you haven't you absolutely need to watch it.
I've also heard good things about Altered Carbon and Mindhunter, but I haven't gotten around to watching either of them just yet. I've seen two episodes of Mindhunter and it seems interesting enough.