Our parents are getting older and older. Confusion of age, dementia, Alzheimer's affect more and more families. Mother and father, grandma and grandpa have to be increasingly cared for and protected. If mental deterioration is accompanied by a change of character into malice, the care and helpfulness of adult children reach their physical and psychological limits. Evil old mother breaks a taboo. Has love come to an end, goodness its limits, are the carers threatening to wither away? Birgit and Matteo Scheele describe a concrete case, give suggestions and answers to other affected persons.