Lisa and the Other Woman (1961)

Surprisingly enough, Lisa Frangoudi and Mitsi Gavriiloglou are like two peas in a pod; nevertheless, the similarity ends there. Mitsi--the pampered only daughter of an affluent industrialist--has never worked a single day in her life, on the other hand, though, the impoverished street urchin and leader of a motley crew of equally poor waif children, Lisa, has no other choice but to sell combs to eke out a living. Before long, the girls' striking resemblance combined with a reckless act of defiance will lead to a spontaneous and seamless collaboration between Lisa and Mitsi's father, who pays a hefty reward to bring peace into his home. Can Lisa become the other woman?