Carl's wife who discovers a storage unit containing the belongings and IDs of the serial killer's victims. After confronting Carl and finding more evidence, she initially plans to report it but returns home and burns the evidence in emotional turmoil.
Their marriage is strained by Carl's absences and secrecy.
The story explicitly describes Ruth as Carl's wife, and Ruth is angry that Carl leaves her alone night after night.
Explore the full interactive character relationship map of The Dead Girl