By Rachel Crocetti
Updated Oct 29, 2015 @ 7:00 am
Credit: Suzanne Tenner/FX

This week's episode of American Horror Story: Hotel, titled "Devil's Night," brought whole new meaning to a killer dinner party. The episode opened up with a man striding into the Hotel Cortez, and signing the guest book as Richard Ramirez. The mysterious new guest claims he doesn't need a key, and that he has a standing reservation for Devil's Night.

We then cut to poor Detective John Lowe (Wes Bentley), still investigating his Ten Commandments murders, while staying at the hotel of horrors. After seeing blood dripping down from the ceiling and walls, Lowe runs upstairs to ask the maid, Miss Evers (Mare Winningham) if she knows anything about it. As it turns out, Miss Evers is having a tough day, because it is Halloween, the anniversary of when she had her son kidnapped from her while trick-or-treating. While Detective Lowe makes the maid a drink, they realize they have very similar situations, except Miss Evers's little boy wasn't just kidnapped—he was also killed.

Credit: Suzanne Tenner/FX

Next, we see Alex Lowe (Chloe Sevigny) leading her previously-kidnapped son, Holden (Lennon Henry) into their house. Her little boy is acting odd, telling her it's too bright when she opens the curtains, and claiming he is thirsty. When Alex goes to bring her son some juice, she is shocked and disgusted to see that he was not thirsty for apple juice, but was instead thirsty for their pet dog's blood. After Holden claims he doesn't feel good and "needs his other Mommy," Alex rushes him back to the hotel to get some answers.

When the concerned mother confronts Elizabeth (Lady Gaga), claiming that she stole her son at the carnival years beforehand, the Countess replies that she didn't steal him; but instead, she saved him. The two beautiful blonde women duke it out, Alex holding a gun to Elizabeth's head, as she requests that she change her son back to how he was before. Elizabeth offers Alex the same "health, vitality and everlasting life" as her son, in exchange for her undying loyalty.

While his troubled wife is upstairs chatting with their son's new vampire mother, Detective John Lowe is having a drink at the hotel bar, succumbing to alcohol after the days spent at Hotel Cortez. A woman who claims to be the famous serial killer, Aileen Wuornos (Lily Rabe), sits down beside him and tells the Detective her story of killing many men. Lowe, thinking the woman is dressing as the famed serial killer for Halloween, goes along with it and ends up with an invitation to the "hottest event of the season," the Devil's Night soiree in room 64.

Credit: Suzanne Tenner/FX

The Detective winds up at a table with original hotel owner/serial killer, Mr. March (Evan Peters) and all of his Devil's Night guests: infamous serial killers Aileen Wuornos, Richard Ramirez (Anthony Ruivivar), Jeffrey Dahmer (Seth Gabel), John Wayne Gacy (John Caroll Lynch) and the Zodiac Killer. We soon find out that these serial killers learned everything they knew about murder through Mr. March, and their ghosts meet every year on Halloween to celebrate their evil ways at the Devil's Night soiree where, in the words of the hotel owner, "the real ghouls come out to play."

After countless scenes of discussing murder around the table, dancing to records, and a dessert platter of different-sized knives, the Detective wakes up in a corner of the room, alone and screaming, where Hypodermic Sally (Sarah Paulson) finds him. She claims he drank too much absinthe and was hallucinating, but we know better than to assume something as crazy as a meeting of dead serial killers is impossible in Hotel Cortez.

The episode ends with Elizabeth in an all-red outfit and lace veil, transitioning Alex into a vampire so that she can be with her son at last. It only makes us wonder if her husband will be next. Is it possible that the Lowe family could live happily-ever-after as vampires? We'll have to keep watching to find out!

Catch American Horror Story: Hotel on FX, Wednesdays at 10 p.m. ET.