An interest in analytical theories and practice, the experience of home visits and the use in this particular case of S. Fraiberg’s writings including accounts of therapies at the homes of families presenting high physical and psychic risk for their babies, were among the tools which helped make the three-year accompaniment of an adolescent mother and her baby possible. Added to them were Esther Bick’s observation technique in institutions as well as institutional group therapies. These diverse approaches were definitely helpful in finding the most adapted way to enter into a relationship with this very persecuted family so as to establish a therapeutic alliance with its members. This alliance, above and beyond the distrust and the moments of disbonding, made it possible for the work to continue and evolve through time. The following article is a contribution to research done toward the prevention of physical and emotional deprivation during the first months of the child’s life.