Childhood experiences of interpersonal trauma often leave a legacy of painful emotions and memories that can be especially destructive when adults transition to parenthood. In this article, the authors present a promising treatment approach, Perinatal Child-Parental Psychotherapy (P-CPP), adapted from evidence-based Child-Parent Psychotherapy (CPP) for trauma-exposed parents and young children. Like CPP, P-CPP addresses traumatic experiences and improves mother-child emotional attunement, but it brings this work to the prenatal period. A clinical case illustrates the core modalities of P-CPP and emphasizes how uncovering, making meaning of, and healing from childhood trauma has enduring benefits on prenatal and postnatal maternal and child well-being.