In Robert Cormier's "The Moustache," the turning point occurs when the protagonist, Michel, visits his grandmother in the nursing home. During this visit, he decides to wear a moustache that he has grown, and this seemingly small act leads to a significant moment of conflict and realization.
As Michel interacts with his grandmother, who suffers from dementia, she mistakes him for her late husband due to the moustache. This misrecognition triggers a poignant confrontation with his own feelings about identity, memory, and the burden of familial expectations. Michel is torn between enjoying the attention and affection from his grandmother and the discomfort of deceiving her. The intensity of this moment lies in the emotional weight of family connections, the impact of memory on relationships, and the ethical implications of his deception. This pivotal scene sets the stage for Michel's internal struggle and the story's exploration of truth and illusion in personal identity.