"The Killing" returns for one last case this summer, and two new posters promise that stars Mireille Enos and Joel Kinnaman will be getting their hands dirty -- and bloody. 

The series, which originally aired on AMC, was picked up by Netflix for a 6 episode final season which picks up right after the season 3 finale.

Both haunted by their actions in the previous season, Detectives Linden (Enos) and Holder (Kinnaman) have to investigate a mass murder which left a family dead. The only survivor was teenaged boy Kyle (Tyler Ross), who attends an elite military academy run by Colonel Margaret Rayne (Joan Allen).

Kinnaman looks serious:

The Killing

But Enos can play the looking-serious game just as well:

The Killing
The new season also stars Gregg Henry, Sterling Beaumon and Levi Meaden.   

"The Killing" returns August 1 on Netflix.

Dave Lewis has been a Los Angeles-based entertainment writer and editor for nearly ten years. Originally hailing from Minneapolis, he moved to L.A. in 1996 to attend USC, before working for various periodicals and web sites including a lengthy stint at Variety.com. He joined the HitFix staff in 2011.