WARNING: If you don't want to know what happened in this episode, don't read this photo recap!

Quick reminder that Heart Industries has their hands in everything. From Television programs, to pharmaceuticals, to cars that drive on blood. They're basically capable of taking over the world. And kinda? It looks like they are.

Now. Back at the Mayhem party, Grace and Arthur have got Slink cornered and they have a lot of questions - where is Grace's sister? What does Heart want with medical facilities? Slink is not about to answer. He does warn them however, about…

These two. They're siblings named Jack and Diane. And it turns out that Slink tested an experimental biological weapon called "The Dionysus Strain" on an entire town not too long ago that made everyone crazy horny, and then murderous. That drug killed their parents, but the siblings are infected and immune. They may look sweet, but these two are out for revenge.

Meanwhile, back at Heart, Aki shows Christopher the repair job they've done to his eye. Good news? It's bionic! Bad news? He's only allowed to leave Heart when he's worked off the MILLIONS of dollars it cost. It'll take almost a century. Poor Christopher.

When Slink realizes that the crowd will tear everything apart unless they get a show, Arthur goes out as Slink. And Jack and Diane (the siblings) mistake him for the person who killed their parents.

So. In order to get to Arthur, who they think is Slink, the siblings start making out with various people and infecting them with the horny-zombie drug. And everyone starts excreting a blueish glow-in-the-dark goo.

Before long, Arthur is infected with the Dionysus strain. Grace convinces the siblings that Arthur isn't Slink, and when Arthur and Grace go off to find him, she reveals what Slink told her: somewhere in this facility is the plans for a cure that can counteract the strain.

Meanwhile, Christopher begins his job at Heart and learns, through his bionic eye that Arthur is still alive and trying to take down Heart Industries as well. With renewed purpsoe, Christopher tries to get to the secret file that's all about the Blood Drive.

As Arthur finally figures out his way into the lab, he finds the cure for the strain! In order to create an antidote, siblings have to have sex with each other. That makes an orange goo to counteract the blue goo that everyone is excreting. Yep.

And so, Grace convinces the siblings to finally admit their underlying feelings for one another and have sex. While they do, they start excreting a ton of that orange goo.

Slink pushes them into a machine that grinds them up, and runs them into a hose. Grace splatters all the murderous horny Mayhemmers - and saves the day.

In gratitude for saving his party, Slink reveals the location of Grace's sister, and that they're going to reroute the Blood Drive to go near there. Also? Julian Slink has a plan for something called a "Soul Replicator" - what's that?

As Slink goes back to his business, a blood portal (for lack of a better word?) opens up. He has to go back to Heart for more notes on his Blood Drive.