In Dia de Las Madres, we see the effects of long-term separation on the relationship between a mother and son. Eddy is a father and restaurant server who immigrated to the US from Mexico 36 years ago. Due to the onset of Parkinson's disease, his mother Ramona remained in Jalisco, where she continues to struggle with the effects of her illness. For three decades, the telephone has been their only form of contact. Structured around a phone call on Mother's Day and shot simultaneously in two countries, Dia de las Madres captures the similarity and disparity in the lives of two loved ones who yearn to see each other before their passing.