She may not even have to wait that long, as Greta's confronting Cliff right now at -- wait for it -- the country club. Christ almighty, you guys, even the Walsh kids congregated away from the Peach Pit every now and then. So she tells Cliff that the bloody dress has been found and their story is out in the open, and before Cliff can properly respond, Skip hollers to the both of them and starts joshing about how Cliff is really the kind of guy Greta should be going for. Michael Cassidy is all kinds of awesome here, twisting his face from a scowl to a mask of exaggerated joviality and back again, managing to suck up to Skip, twist the knife with Greta, and betray juuuust the slightest hint of simmering rage underneath. And he manages to make Greta flounce off, too. Which Cliff chalks up to "Women," and he fist-bumps Skip. Hee. Cut to Cliff tearing up his bedroom once he's confirmed the angel dress is indeed missing. Later on, he creeps into Johnny's room and they have it out, Cliff giving his version of events, only in Cliff's version, Greta was the one who left the party first, and Cliff only came later to find her cradling Eddie's dead body. Pushing all sort of buttons -- including the "Daddy killed himself in front of me" one -- Cliff manipulates Johnny into once again suspecting Greta did something nefarious before Cliff showed up.
That night, Cliff shows up in Liza's garagabatory to menace her/profess his innocence. After he leaves, Liza discovers the bloody angel costume dress is gone. Oooh, another mystery! Who do you think took the dress? I say Nikki.
At Tess's party -- which is at Johnny's family's house -- Cliff tries to convince Johnny that Liza's not to be trusted, which I can't imagine would have much success. Then Johnny tries to warn Nikki that Cliff isn't to be trusted, which goes over just as poorly. Maria shows up and spies Cliff and Nikki making out, which you'd think would drive her into a fit of Middle-Aged May-December Lady Rage, but instead just leads to her and Cliff humping in her dead son's old bedroom. Nikki sees them, of course, but instead of falling face-first into some Cuervo, she waits for Cliff to find her later and reads him the riot act. While his denials are delightfully disgusting ("She's like a second mother to me!"), Nikki isn't buying them and she tells him they're finishes.