Annamaria, a single, independent, and career-focused photojournalist living in Rome. Her structured life is turned upside down when her sister suddenly departs, leaving her three young children—Carlo, Alice, and the baby Nicolas—in Annamaria's care. Completely inexperienced in parenting and juggling a demanding job alongside a complex romantic life, Annamaria must adapt to her unexpected role as a surrogate mother, leading to a series of chaotic situations, emotional growth, and heart-warming moments.

Mamma per Caso ran for 1 season. No new episodes are scheduled.