Background: Adult children are often key carers of frail older parents providing care for a long period of time in different care contexts. However, research concerning adult children’s caregiving experiences, from providing home-based care to facing the death of a parent in a nursing home is sparse. Thus, the aim was to explore the transition from living at home to moving into and living in a nursing home and the time after death from the perspective of next of kin to an older person. Methods: A qualitative design using individual interviews with 15 adult children of older persons. The text was analysed using inductive content analysis. Results: One main category was identified, until death do us part. With three generic categories, living at home, living at a nursing home and time after death, and eight sub-categories. The results describe the transition when an older person lives at home and moves into and lives in a nursing home and the time after death from the perspective of next of kin. Conclusion: This study highlights many examples of tasks that adult children provide over a long period of time and in different care contexts since they felt that professional care was unable to provide safe and secure care for their older parents. It also highlights the importance for staff to recognize the support that next of kin provide. Furthermore, the study reveal that staff do not offer the relief that they are obligated to provide, to enable next of kin coping with this strenuous transition in life. First after the parent died, there was time for relief since the worrying and the doing of practical things for the parent had stopped. Trial registration: Current Controlled Trials NCT02708498.