Who knows how to catch a killer better than other killers?

Netflix dropped the Season 2 trailer for "Mindhunter," the drama that explores the early days of criminal profiling at the FBI. The first season began to delve into how FBI agents interviewed locked-up murderers to understand they psychologies and Season 2 goes even further — and darker.

Jonathan​ ​Groff and Holt​ ​McCallany are back as FBI agents Holden​ ​Ford and Bill Tench, as is Anna Torv as psychology professor Wendy Carr.

In the trailer, convicted killer Ed Kemper (Cameron Britton) teases the agents when they return to interview him. "Have you got someone, Holt, someone you can't catch?"

The answer is yes. Season 2 is set in 1979-1981, during the time of the Atlanta child murders. African-American serial killer Wayne Williams was tried, convicted and sentenced to life imprisonment for killing two adult males. Williams, however, was never tried for any of the child murders, but was suspected of being involved with 23 of them.

In order to crack the case, Ford and Tench turn to such iconic serial killers as Son of Sam and Charles Manson (played by Damon Herriman, who also plays the cult leader in Quentin Tarantino's "Once Upon a Time in Hollywood").

All eight episodes of "Mindhunter" Season 2 will begin streaming August 16 on Netflix.