More than one million children in France live permanently or occasionally with a step-parent. What place does a step-parent hold in the family of a child whose parents are divorced or separated? What role does he or she play? Is it sufficient to know how to love in order to succeed in reconstructing a family? This is the first French investigation into the relations between step-parents and step-children that allows both the adults and the children to freely express themselves. Sylvie Cadolle teaches philosophy and educational sociology.