If ever there was a show that didn’t need an integrity check, it’s SouthLAnd. No show has ever been more authentic.

And this was one of its most stripped back, brutal episodes.

It started with the photoflash freezeframe voiceover, which was much more to the point than usual: the average street cop in Los Angeles makes $75,000 a year… it’s not enough.

It really isn’t, judging by the hell that our characters have to fight through every week, which sometimes comes from the cases they work, and other times is of their own making. However it occurs, the characters on SouthLAnd get pushed further and harder than those on any other show. It’s f**king brutal, but it’s what makes the greatest dramas.

This week was rough. It had its funny scenes, of course, because this show can be violent and dark and horribly sad and gut-punchingly funny at any given moment, without ever sacrificing its ability to grab you in an emotional choke-hold or make you laugh while it’s doing it. Whether it was Sherman’s “leap of shame” or Dewey’s entirely expected yet so much worse than you expected ranting in front of the documentary crew, Integrity Check brought the raw humor when it wanted to.

It just didn’t want to very often. With this sixth episode, SouthLAnd turned the corner of darkness and pain that it’s been heading towards since the start of the season. You get the feeling things are only going to get more messed up from here.

Ben McKenzie and Shawn Hatosy nailed the disintegration of the trust between them, bringing a raw energy that made their performances more wrenching. Regina King was superlative, as she always is, dealing with Lydia’s temporary return to uniform duty with the almost unbearably visceral physical challenges that involves. But while we might have thought what happened to her was awful, we had no idea what was waiting for us at the end of Cooper’s shift.

Once again, this show reveals just how much of a knife-edge cops walk on, every minute of every day. Anything can happen at any time, and it can be goddamned terrible and come out of nowhere. Michael Cudlitz again stepped up and delivered an Emmy-worthy performance as Cooper found himself suddenly embroiled in a truly horrific and shockingly savage fight to the almost death. It was intensely physical, taking the show’s already extraordinary physicality to a new, transcendently brutal level.

It was breathless television, unbelievable, unwatchable almost, although you couldn’t tear your eyes away.

That’s what SouthLAnd does to you.

It was a great script that took us to that terrible place, penned by SouthLAnd’s master of brutal precision, Jonathan Lisco, with story editing by Chitra Sampath. Lisco brings an emotional scalpel to his stories, flaying characters bare, down to the bone. His scripts are always perfect studies in structure, pace, and ruthless execution. Sampath brings a wonderfully unhinged sense of humor (her “find my friends app” scene in Failure Drill is still one of the greatest comedy moments of the show), and an impeccable sense of controlled chaos coupled with the ability to unleash it at the exact right moment. With Sampath on board, all hell will typically break loose, at the worst moment for our characters. And so it does here.

A script by Lisco demands the greatest of the SouthLAnd directors, Christopher Chulack. While John Wells runs the writers room, it’s Chulack who is on the street, running the other directors, and acting as the guardian of SouthLAnd‘s visual aesthetic. In this, he is ably assisted by the greatest director of photography in film and TV, Jimmy Muro. Between them, Chulack & Muro create masterpieces of depth and motion with the L.A. light and locations. Two particular examples out of many: the reflections of palm trees along the strip mall windows where Cooper and Tang deal with the “cake incident”; the depth of field and rich, endless golden light behind Cooper as the documentary crew film him after he lets the driver with expired registration go.

The episode was full of such moments, and it had a new layer this time round: that of the camera crew filming the cops. This allowed Chulack & Muro to change visual textures and create constantly evolving looks for the episode as they switched between the documentary, and the show’s normal look (which is ultra-heightened, desaturated documentary). It was a fascinating decision to introduce this conceptual and visual layer, and it worked perfectly.

Episodes of SouthLAnd are like the Sistine Chapel of television. Chulack & Muro are artists of the streets. But it’s art that knocks you flat on your ass with its impact. They’re refining their approach with every episode, and Integrity Check represented a new level of beautiful detail, deep light, layers upon complex layers; all of which drove the shocking and visceral moment to moment heart-stopping action, which was front and center throughout. It was, visually, a beautiful & haunting episode. As happens so often, it was a masterclass in framing, composition, lighting, depth and motion.

Let’s face it, SouthLAnd is a show that will wrestle you to the ground and savage you emotionally. It may lull you with the beauty of Los Angeles, the punch of its humor, the soulful camaraderie of its characters, but don’t let it: because it will come for you eventually, and put you through the ringer, leaving you exhausted, drained, shaking.

It’s what you keep coming back for.