This paper describes how to engage fathers in family therapy. It starts from a critical review of systems theory and postmodernism around the topic of the truth and family secrets. The Author describes how to challenge fathers’ resistances and to motivate them to reveal the truth to their children in therapy. The fundamental passage from being protective to being respectful of children is outlined too. The process of immaturity transmitted through generations can bring children to perform adult and responsible roles instead of their fathers. Then, the third older generation can be activated and considered as an emotional bridge in connecting fathers and children in order to transform inverted roles and responsibilities.
Keywords: Fatherhood, truth, parental child, process of immaturity, therapy, multigenerational.