|Title||Of Grave Importance|
|Episode #||Season 7, Episode 19|
|First aired||April 20, 2012|
|Directed by||Tim Andrew|
|Written by|| Brad Buckner|
|On IMDB||Of Grave Importance|
|Outline||Sam and Dean come up against the spirit of a serial killer while trying to find their friend, Annie Hawkins, who has become a ghost herself.|
|Monster|| Vengeful Spirits|
|Location(s)||Bodega Bay, California|
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Sam and Dean stop for a bite to eat and receive a call from fellow hunter Annie Hawkins, who tells them that she has some books that belonged to Bobby. She tells them they can pick them up from her at an inn in Bodega Bay, where they are, after she has finished wrapping up a case. Meanwhile, two teens are making out in an old house in which Annie goes to investigate. They make a run for it, but are stopped by a very large man. Annie walks in, finds the teens dead, and her flashlight suddenly goes out.
The brothers are at restaurant the next day, Annie having failed to show up. They find out that Dick Roman has funded more archaeological digs and remark that it's a good thing Bobby did not stick around as a ghost. Just then, Bobby's flask moves, but neither see it. Afterwards, they drive to Annie's hotel room and, once inside, go over all her research about disappearances at a place called the Van Ness House. They decide to check out the old home, taking Bobby's flask with them forcing his spirit to tag along.
At the house, unbeknownst to the Winchesters, are several ghosts. Only Bobby can see them. He notices the spirit of Whitman Van Ness scolding another, Dexter O’Connell, saying he shouldn’t have done what he did and there will be consequences. The brothers' EMF reader goes crazy and Dean tries calling Annie's cell phone, which they find on the floor. Bobby finds Annie, who realizes she's dead, and the ghosts of the two teens from earlier. Dean and Sam check the phone and find a voice mail message left by a ghost as a warning.
Bobby and Annie meet Haskel Crane, a spirit who can move objects easily, and try to learn how to do so, but to no avail. Suddenly, another one of the ghost screams and disappears, Haskel remarking that eventually they will all be gone, too. The brothers leave, taking Bobby with them, while Annie meets Victoria, the one who left that message.
At the Bodega Bay Historical Society, the brothers speak to the curator, Quentin, and learn that the groundskeeper, Dexter O’Connell, killed Whitman Van Ness' wife. They also find out that he killed many others at the house, mostly prostitutes, and was convicted and shot to death when he tried to escape. Back at their motel, Bobby writes a message in the steam-covered mirror in the bathroom while Dean showers, letting them know that he's still around and that Annie is trapped at the Van Ness house.
Annie, meanwhile, witnesses Whitman Van Ness killing two other teens and then destroying Dexter's spirit who was trying to warn people about Van Ness. He never killed anyone, Whitman was the killer all along. Annie convinces Victoria, the ghost of a prostitute, to retrieve the teen's camera while Whitman moves the teen's bodies through a secret passage in the wall. Sam and Dean arrive and Victoria gives them the camera, confirming Annie's spirit is there. Just then, however, Whitman burns Victoria's bones, destroying her. He then secretly puts an old key into Sam's pocket, allowing him to leave the house with the Winchesters who head to the cemetery where he is buried. Bobby, unfortunately, remains stuck in the house since he is carrying his flask with him. He and Annie look around for the bodies of all the ghosts and locate them in a hidden room. Annie says she's ready to move on and tells Bobby to give her a hunter’s funeral pyre.
Meanwhile, still on their way to the cemetery, Whitman's ghost grabs hold of the steering wheel of the Winchester's car, trying to crash it. They pull over just in time, and find the key. Dean then shoots it. With Van Ness sent back to his house, Dean and Sam hurry to find his body. Whitman finds Bobby and attacks him, almost draining his energy. Before he can completely, however, the brothers burn his bones, killing him.
Sam and Dean return to the house and can now see Bobby. They burn all of the corpses, including Annie's. Dean confronts Bobby for not choosing to go to Heaven. Bobby retorts that it was so he could stay and help them. Dean says that what he’s doing isn’t right. Bobby vanishes and the brothers drive off. As Dean warns Sam that this will not end well, Bobby sits listening quietly in the backseat, unseen by them.