Data collection from informal caregivers includes the Medical Outcomes Study SF-36, Symptom Checklist-92 (SCL-92), modified Medical Outcomes Study Social Support Survey (mMOS-SSS), Zarit Burden Interview (ZBI), Dyadic Coping Inventory (DCI), Relationship Ladder, and Experiences in Close Relationships-Short Form (ECR-S). Data collection from caregivers will continue after the patient's death in the form of questionnaires, which are to be completed after 14 days, 2, 7, 13 and 19 months into the bereavement process (Medical Outcomes Study SF-36, Symptom Checklist-92 (SCL-92),Pittsburgh Sleep Quality index (PSQI), modified Medical Outcomes Study Social Support Survey (mMOS-SSS), Inventory of Daily Widowed Life (IDWL), Experiences in Close Relationships-Short Form and Prolonged Grief(PG-13)). Further, data on caregivers' use of healthcare services will be retrieved from the National Health Care Register, National Patient Registry, the Psychiatric Central Register and Medicinal Product Statistics Register. After the last session, short semi-structured interviews will be conducted among a selected group of caregivers to identify the elements of the intervention that were experienced as helpful, and to investigate the caregivers' experience of having cared for their relatives at home and their bereavement process.