Suki, a young woman suffering from dissociative identity disorder, moves into Juniper Tower, a strange, darkly Gothic Revival architecture apartment building, that serves as a halfway house for mental patients who don't need to be institutionalized any longer, but are not completely cured yet. Suki has been given an experimental device that lets her perform a procedure known as ''The Siamese Burn'' on herself. The machine is supposed to "burn" all her extra personalities until she only has one left.