Background Migrant live-in care workers are a main pillar of long-term care in many countries, including Germany. Several studies examining their working and living conditions reveal serious problems. However, a key element of live-in arrangements, namely the relationship between the individuals involved, has not yet been systematically investigated from an ethical perspective. Aim Building on previous socioempirical work that explored and set out the meaning of “care networks”, we start from the premise that live-ins are embedded in a network of (...) relationships which are essential for their employment and living situation. Methods The theoretical analysis draws on a network approach that takes care–ethical considerations into account. Using Joan Tronto’s four care–ethical phases, existing dependencies are described and reflected upon using the corresponding four care–ethical dimensions. The central questions are how dependencies in the live-in arrangement can be characterised based on the existing body of empirical studies and with a focus on the elements of power, dependency and trust in the ethical reflection on care. Results Based on this analysis, it becomes apparent that the ambivalence resulting from the simultaneity of different forms of asymmetry and mutual dependence is omnipresent in live-in arrangements and gives rise to seemingly contradictory forms of relationships and emotions. Responsibilities are vague and are constantly renegotiated on the basis of implicit assumptions and problematic role expectations and are also assigned without negotiation. Conclusions In the future, it will not only be necessary to better understand and clarify responsibilities at the micro level of the individual care arrangement from the various positions and roles and with a view to the changing processes of caring for another, but also to address the pressing ethical questions and problems in live-in arrangements at the meso and macro levels—enriched by care–ethical perspectives. (shrink)