A young couple inherit a country mansion. They move in and plan to turn it into a bed and breakfast. However, the house is also occupied by ghosts, who are dead set against the idea.
After falling down the stairs and suffering a concussion, Sam now sees the ghosts but believes she is seeing things. The ghosts try to think of ways to convince her they really are there.
When Thorfinn's bones are discovered on the property, he asks Sam to conduct the traditional Viking funeral he's always wanted; Sam and Jay are torn when they learn that the bones could be sold to a museum for a lot of much-needed cash.
Sam and Jay invite Henry and Margaret to a dinner party to woo them into allowing the bed and breakfast; the ghosts are desperately eager to be included on the guest list.
Pete gets a visit from his living wife only to discover she's hiding a secret from him; Sasappis gets angry when Thorfinn binge-watches their favorite show without him; Trevor learns he may have a daughter.
When Sam is commissioned to write an article about Flower and her friends holding up a bank during their commune days, Flower begs Sam not to accept the job because she's embarrassed about a part of the story she's never revealed.
After Jay is kicked out of a Dungeons and Dragons game with his city friends, Sam agrees to facilitate a new one between him and the ghosts; Isaac confronts his feelings for Nigel, a ghost from whom he's been keeping a gigantic secret.
Sam and Jay travel to where Sam's mother, Sheryl (Rachael Harris), died to see if she's now a ghost. Also, Sasappis divulges a secret to his fellow ghosts that he overheard Sam and Jay discussing.
When Jay's sister, Bela, comes to visit after a breakup, Sam is excited to help her through it with some girl time. However Bela arrives with news that spoils her plans.
While Sam and Jay prepare to host their first wedding, the contractor finds a hidden vault. Jay hopes to "Scrooge McDuck" into gold coins, Trevor tells the other ghosts about Al Capone's vault.
Sasappis offers to help Sam complete the bed and breakfast website so they can start taking reservations; Pete bonds with Jay over basketball, until Jay makes a new living friend; Flower attempts to be Pete's new basketball buddy.
As work begins on the guestrooms, the ghosts are forced to pair up. Thorfinn's roommate gets a shock on their first night, leading to Sam seeking a therapist who makes house calls.
Jay accidentally wakes the ghost in the attic, a teenager who usually sleeps in (only waking a few days a year), so she isn't happy to have been disturbed. Having died in prom night, the ghost wants to throw a ghost prom to make up for it.
Jay and Sam are ready to open their bed-and-breakfast, unleashing a horde of bored ghosts on unsuspecting guests. But Thor's pettiness comes back to bite them when a competing B&B reveals itself as the byproduct of a nasty Norse curse.
