In the climax of the movie, Abe Lucas (Joaquin Phoenix), a philosophy professor struggling with existential despair, becomes involved in a morally ambiguous situation. He decides to commit a perfect murder, believing it will give his life meaning.
In the resolution, Abe successfully executes the murder without being detected, and he experiences a renewed sense of purpose. However, as the story progresses, the police become suspicious, and Jill Pollard (Emma Stone), a student who is infatuated with Abe, starts to suspect his involvement.
Abe’s mental state begins to unravel as he grapples with the consequences of his actions and the increasing pressure from Jill. In a confrontation, Jill confronts Abe about her suspicions, and he admits to the murder.
The film ends with Abe accepting responsibility for his actions and facing the consequences. He is arrested by the police, and the movie concludes with the aftermath of the murder and its impact on the characters.
In summary, “Irrational Man” ends with the protagonist facing the repercussions of his morally questionable choices, providing a commentary on existentialism, morality, and the search for meaning in life. The film explores Woody Allen’s recurring themes of philosophy, ethics, and the complexities of human behavior.