Jay visits the farmer's market and buys vegetables from June and Ally's booth. They reveal that they're going to Liam Neesons Halloween party; they think Jay wanted to attend the party.

Jay lied to the neighbors that he was throwing his own Halloween party with Sam. The neighbors agree to pop by before the other party.

Sam agrees to throw the Halloween party. Isaac asks if he can bring Nigel; Jay and Sam are good with it. Trevor is hesitant that no one will show up because it's so last-minute.

Only a small group of people attended the Halloween party.

One of the neighbors walks through Isaac, which triggers his smelly ghost power. Nigel is confused about where it came from; Isaac blames it on Pete.

Hetty recommends they hold a seance to impress June and Ally. When Sam conducts the chant, lightning strikes and a portal opens up revealing a new ghost arrival. However, nothing shows up for the humans at the seance table.

The ghost is the maid who slept with Hetty's husband. Hetty wants the maid to go back to the beyond, but she's not sure how she got there.

Jay reveals that everyone left the party.

Sam believes that they need to get Molly to go back through the portal before Halloween is over or else she'll be stuck there. Sam and Jay try another seance ritual, but it doesn't work. Jay thinks they need to get the feather duster back to complete the ritual since it belonged to Molly.

Pete encourages Isaac to be truthful to Nigel about his ghost power. Isaac is embarrassed that the fart power will make Nigel leave.

Sam encourages Hetty to find forgiveness with Molly so that it can help her move on. Flower has an idea to lock Hetty and Molly in a room together to talk through their issues. They believe the vault will do the trick.

Flower closed the vault down with Hetty, Molly, and Sam trapped inside. Alberta and Flower aren't able to open the vault up since Sam is inside and the handle is made of a different material than the door.

Sam panics and worries she'll die in the vault from suffocation.

Jay retrieves the feather duster from June and Ally.

Hetty and Molly talk about the past. Molly reveals that Elias pursued her and she couldn't resist since she was a maid who tried to raise her child alone. Molly and Hetty both hated Elias; Molly gave Elias Syphallus.

Thorfinn uses his powers to lead Jay into the bathroom. Trevor gives him a message in the bathroom, but Jay misreads it. Isaac uses his powers to get Jay to go back to read a message. Jay successfully learns that Sam is in the vault.

Jay frees Sam from the vault.

Nigel is fine with Isaac's power. They are on good terms.

Sam and Jay's seance ritual works as Molly is beamed back to the afterlife. Hetty tries to grab onto her and be taken to the other side, but it doesn't work.