What happens, when Omid and Christa come home after the apocalypse has settled down a bit. Their cat is not amused.

They stood at their front door.
Omid and Christa had survived a whole year since the outbreak and thought, that it was time to return home and feed their cat. Hopefully she was still alive.
"Oh great, I lost the key! What should we do now?"
Christa stared at him. She did a roundhouse-kick and the door was open.
"Thank god I have you!" Omid hugged her with a smile.
Christa shoved him away and whispered: "I'm kinda worried... I don't think our cat has made it... I mean, she's so lazy, she probably starved to death!"
But Omid could comfort her a bit. "Nah hon, she likes to eat carrion, don't you remember?
I think we left the door to the garden open, she must've got out and ate corpses of walkers lying around."
With quite an uncomfortable feeling they slowly made their way into the hallway.
A crazy giggling could be heard. Both held their breath.
"What was that?" Omid asked. "I dunno", Christa said.
"But you heard that too, didn't you?" "Of course, and now shut up!"
Finally they reached the living room. Everything was quiet and dark, and dirty too.
A painting of a woman with a ponytail hung crooked.
"Our house is giving me the creeps..." Omid wailed.
Complete silence.
"I've been waiting for you..."
It came in a very low voice and an italian accent from the center in the room. From a chair. With Omid's and Christa's cat sitting on it, but with her back to them.
"Oh my god, Cat, I didn't know you were Italian, and that you could talk!"
Omid was visibly pleased. Unlike Christa.
"Well, I never had to. Until now."
Cat spun around putting her pawns on the back of the chair.
"You know, everyone thinks that cats are dumb. They kill helpless mice, even if their owners feed them. You watch funny videos with cats doing stupid things. You like dogs more than cats. I could go on and on."
Christa and Omid were shocked. "Where did you pick up all that stuff?" Christa wondered.
"But the mankind's time is over. Now begins the period of the cats. All cats around the world planned this apocalypse just to exterminate all of you filthy humans. And it worked. The last survivors are you two. And my job is to erase you from our purrfect world, my dear owners. Say your last prayers!" The cat was now floating in the air, arms outstretched. Like some kind of god. Christa and Omid were backing away, but suddenly the front door closed.
"There's no escape from me meow..."
Cat was floating up to them, forcing them to the door until they stood with their backs at it.
Suddenly walkers were shuffling to them, spiky things came out of the walls.
"Cat, please don't do this, we can talk..." Omid uttered.
Christa grabbed Omid and kissed him for the last time.
"Die!"
And everything went black.