The protagonist who receives a DNA testing kit as a birthday gift, becomes the central figure in a homicide investigation after her best friend's murder, and discovers the killer is genetically related to her family.
Family relative whose connection to the victim is scrutinized.
Family relative questioned as a potential suspect in the murder.
Sarah's boyfriend who provides emotional and practical support during the investigation.
Detective who provides the DNA database match results to Sarah.
Law enforcement officer who contacts Sarah regarding the cold case.
Co-protagonists sharing the same family lineage under investigation.
Explore the full interactive character relationship map of Her Secret Family Killer