The objective of this research was to show how the institutional’s unthought of elder abuse derives from a specific modality of the pact of denial called pact of disavowal, by defeating ethics and precipitating the subjects of the institution in a formal act repetitive phenomenon.Our argument revolved around two major themes: around a central axis on disavowal and a transverse axis centered on repetition. It considered as the correlate of the disavowal.Examination of the action of this operator through the uncanny and the construction of metonymic-metaphorical of Double, has shown the existence of a pact of disavowal, and the issue of its use when the object is abuse in a geriatric institution: conceal the existence of abuse; exclude liability of the act; cover the participation of caregivers in institutional abuse.The existence of a double disavowal could be highlighted: a denial of the word of resident bound by circularity to a disavowal of the act of abuse. Both disavowals proved to be secondary in the sense of witnessing a repudiation original: the disavowal of the law. The original disavowal based on a fundamental reality: the loss of autonomy up to the high dependency.The first axis of our thesis necessarily leads to consider an additional field: professional ethics in evaluating the effects and consequences of this disavowal we mentioned. The Ethics Review has led to the hypothesis of a hit of this, correlated with the operation of disavowal.The second line of research cross with our problem and that the phenomenon of repetition of the act of abuse is the correlate, helped highlight how binding the institution rushes his subjects in the repetition in the action of disavowal which inhibited the construction of memory, resulting in not putting elder abuse in the past.