Ridiculously thought-provoking. The underside of the American dream. When it is often presented as a path to follow, a social and personal ascension, possibly all the way to the top, American Psycho proposes to show us not how you get there, but who you have become at the end of the journey. The MC is a narcissistic imposter, an ultra-conformist consumer, and a cold rational serial killer. Incapable of empathy, fascinated by violence, obsessed with symbols of success, materialistic to the core and profoundly unhappy. But is it possible to break free from the nuclear chain reaction of simulacrums? A radical answer is given at the ending, an outstanding "chute".
The son could only talk to his father in the sister's absence? Despite the ostensible 'answer' given at the end that God exists in the form of love, the film is full of ambiguities, as all the characters' reliability remain in question till the end.