The Echo Wife

The Echo Wife is a 2021 science fiction thriller novel by Sarah Gailey, published by Tor Books. It follows Doctor Evelyn Caldwell, an accomplished scientist researching cloning, who has discovered that her husband, Nathan, has used her research to create Martine, a clone of Evelyn who is his ideal wife. When Martine kills Nathan in self-defense, Evelyn must assist in covering up the murder.