I Am the Night tells the story of Fauna Hodel, who was given away by her teenage birth mother to a black restroom attendant in a Nevada casino in 1949. As Fauna begins to investigate the secrets to her past, she follows a sinister trail that swirls ever closer to an infamous Hollywood gynecologist, Dr. George Hodel, a man involved in the darkest Hollywood debauchery and a suspect in the infamous "Black Dahlia" murder of Elizabeth Short in Los Angeles in 1947.