There is a genre of literature and architecture called Southern Gothic.
Common themes in Southern Gothic genre include deeply flawed, disturbing or disorienting characters, decayed or derelict settings, grotesque situations, and other sinister events relating to or coming from poverty, alienation, racism, crime, and violence. (from wikipedia).
Truman Capote wrote several stories in this style. Other notable authors are William Faulkner, Tennessee Williams, Flannery O'Connor, Eudora Welty, etc.
I found the perfect home for my characterization - Hackberry Hall Manor. This amazing build is sold by Never Totally Dead/BlueSean Yiyuan, 393 prims, $3,900 Lindens. NTD is also the creator of the equally amazing Chateau La Lutiniere (i have this home as well).
The ceilings are beautiful and the peeling wallpaper is incredibly realistic. There is a secret room upstairs accessible through a sliding bookcase. There are two other rooms that can only be accessed from within the dining room and the master bedroom - all amazingly decayed and shabby. The kitchen space is creepy, but inspiring as well. You can see this in-world.
I only present pictures of the entry, living room and den. As time permits, I will try to add style information. Please don't hesitate to IM me in-world if you have questions.