(Capcom's primary storyline)
The Baker ranch guest house was a house on the Baker ranch in Dulvey, Louisiana, used as an auxiliary accommodation for guests. The guest house in particular, and the ranch buildings in general, have been referred to as the "Dulvey Haunted House".
The guest house was reinforced in October 2014 when Jack Baker heard about a powerful storm at the end of the 2014 hurricane season. Following the storm, it was abruptly abandoned when the Bakers went missing, prompting an investigation into their disappearance. When the investigation found no evidence that would lead them to the Bakers, it became a cold case and the house left abandoned. In the years following, noises heard emanating from the ranch spawned rumors of it being haunted, prompting an investigation of the guest house by the Sewer Gators paranormal TV show. At some point during its history, the Bakers murdered at least five people in a variety of ways. At least one individual ended up escaping, although due to his possessing LSD, his story wasn't believed. After several kidnappings of civilians near the House, the local police increased patrols and investigations regarding the kidnappings, eventually sending a lone deputy to investigate the house as well.
Ethan Winters arrived at the guest house attempting to find his missing wife, Mia, after she sent a message indicating she had been held prisoner. While attempting to rescue her, however, she denied sending him any message, and shortly afterwards he was forced to defend himself from her when she attacked him in a frenzy, at the cost of his left arm when she tried to use a chainsaw, and was then ambushed by the patriarch of the Baker family, Jack, and then forcibly welcomed into the Baker family. Ethan later returned to this area via the salt mines, and proceeded to confront Eveline and managed to inject her with a neurotoxin to kill her despite her telepathic assault. The house ended up damaged when Eveline mutated into a monster.
During the course of the gameplay, at least 2 files prove that George Trevor has been involved in the house's construction and design, including the hidden passages that can be opened with riddles including lights and shadow. Trevor was previously the architect of the Spencer Mansion and later fell victim to the experiments of the Umbrella Corporation.
Level B1F is the basement, which contained various storage materials as well as body bags. Parts of the basement were also flooded. The corpse of Andre Strickland was found by Ethan Winters while traversing the flooded portions trying to find Mia Winters. It also had a cell, where Mia was locked up by Lucas Baker. Part of the basement was also connected to the nearby salt mines. It was connected to the first floor living room via a secret passage connected by the fireplace.
Level 1F consists of a living room, a foyer, a back hallway, and a kitchen-dining room. Near the living room is a molded door which leads to another hallway that leads to a bathroom and the stairs to the basement. This was the area where Mia Winters, while possessed by Eveline, attempted to murder her husband Ethan. The living room also possessed a secret passageway that was opened via a lever in the fireplace, which led to the basement. The Sewer Gators uncovered this passageway thinking Andre went down there, and eventually discovered his corpse on a hook before being ambushed by Jack Baker.
The second floor consists of a hallway, which bends to the right. It also has a switch, which lowers the staircase to the third floor, when the fuse is inserted and pressed. Ethan was forced to ascend to the second floor while fleeing from a newly insane Mia, and later returned to the location while confronting Eveline.
Level 3F consists of an attic where a number of mannequins are stored along with an attic window leading to the roof of the house. Ethan encountered Mia here for the last time before he was ambushed by Jack Baker and then dragged over to the Main House alongside Mia. It was also the site where he cornered Eveline and destroyed her human form.