Super Short Summary

The Poison Tree by Erin Kelly is a suspense novel following Karen, who becomes entangled in the lives of the bohemian siblings Biba and Rex, leading to a web of secrets and a violent crime for which Rex takes the fall. After ten years, Rex is released from prison, and Karen, who has been raising Biba's child as her own, must confront their hidden past when mysterious calls disrupt their attempt to rebuild a life together. Sensitive topics include murder, substance use, and suicide.