Season two of Mindhunter has everything that season one has: subtle humor, rich characters, and, of course, the chilling serial killers. Holden's back, and we see major changes in the Behavioral Science Unit. There's a whole new set of criminal interview subjects - including David Berkowitz and Charles Manson - along with a tragic new focus: Atlanta's child murders. Because of the main case and new complications in the characters' personal lives, it's a more somber and affecting season with emotional beats guided along by a classic funk and rock soundtrack. If you need a quick and easy breakdown of the most important storylines, read ahead for a recap of Mindhunter's thoroughly engrossing season two.