Part 6/8:
As the narrative progresses, the film deepens its exploration of guilt, culminating in Trevor's shocking realizations. He confronts the truth about Nicholas—his accidental death a year prior—and realizes that the hallucinations of Ivan and María are manifestations of his guilt and inability to cope with the trauma.
The revelation strikes at the proverbial heart of the film; Trevor himself is the killer. This critical moment serves as a cathartic unmasking of his psyche, where we see his past actions conveyed through a cycle of guilt that has ever since haunted him. The hangman’s drawings illuminate his subconscious struggle, and the final revelation that "killer" is the missing word reflects Trevor's acknowledgment of his past.