This study examines the decision of institutionalizing an elderly parent suffering from cognitive impairments and the various people involved in this process: the elderly person, the informal caregiver, certain family members and health and social service professionals. Based on a qualitative analysis of interviews conducted with 16 elderly people and their family networks, this study reveals the importance of considering the point of view of everyone involved. The results show that one of the main reasons behind the decision to institutionalize an elderly person is the appearance of disturbing behaviours related to his or her cognitive impairments. Diverse strategies used by family members and health and social service professionals in order to bring about the institutionalization of an elderly person when he or she is opposed to it are presented as well as the ethical dilemmas this raises. We conclude with a presentation of research and intervention recommendations.