Eleven-year-old Masha Kulabokhova is on the verge of being adopted into the family of fourteen-year-old Cami Diaz. Masha has spent her life in a Russian orphanage, while Cami has enjoyed the undivided attention of her parents in Wisconsin. The integration of Masha into the Diaz household promises to be a transformative experience for both girls. “The Dark Matter of Love” chronicles Masha’s journey as she leaves Russia to spend her inaugural year with the Diaz family, who have also welcomed five-year-old twin boys, Marcel and Vadim, into their home. As the family grapples with the unexpected challenges of connecting with children raised in institutional settings, they enlist the expertise of two leading developmental psychologists to aid in their family-building efforts through scientific methods. Blending moments of humor and poignancy, “The Dark Matter of Love” intertwines the Diaz family’s quest to forge bonds of love with rare archival footage of scientific studies on parent-child affection.