Rome, 1957. A woman, Cabiria, is robbed and left to drown by her boyfriend, Giorgio. Rescued, she resumes her life and tries her best to find happiness in a cynical world. Even when she thinks her struggles are over and she has found happiness and contentment, things may not be what they seem.

Null a perdu sa grande sœur Peta dans un accident, mais pas d'inquiétude : grâce à son génie, elle est parvenue à lui redonner vie sous la forme d'un robot. Mais cette grande sœur ressuscitée est-elle exactement comme avant ?