In The Garden of Spite by Camila Bruce

A young woman flees Norway after a brutal attack leaves her traumatized and eventually leads her to become a serial killer. Nellie, the older sister married and living in America is all too happy to take in her much younger sister Belle and offer her a fresh start away from Norway. Belle seems happy at first with her work in the church and marriage to a kind man who provides her with a good life. Soon spending money on fine things but not being able to have children leaves her feeling bored and jealous of other families including her sister's. It is as if a switch has flipped and Belle soon learns to take what she wants both children and lovers. Once Belle kills the first time it awakens her bloodlust and she begins to kill anyone who gets in her way. She collects men and discards them when they fail to live up to her expectations. This is historical fiction that is based on a true story combining the Scandinavian immigrant experience in the midwest with a Lizzie Borden - type psychopath. Fans of Erik Larson's DEVIL IN THE WHITE CITY or true crime serial killers will dive into this. I especially enjoyed the grisly background information found in the author's notes.  4 1/2 stars