Love Alone Can’t Make a Child chronicles the love story and emotional odyssey of Maria and Christiane who, for over a decade, have been trying to fulfil their desire of giving birth to a child of their own. The director, a childhood friend of Maria, lovingly narrates the couple's journey, showcasing their resilience in the face of ever-increasing challenges, and the intricate dynamics of a relationship under tremendous strain. More than anything else, the film continually pursues what love truly means in a long-term romantic relationship.

After receiving fertile eggs from a donor, Rebecca and Caleb are finally able to have a child and start a family. Several years later, a strange woman appears in their life, and is oddly drawn to their daughter. The egg donor has returned–and she wants what is “rightfully” hers.