El Chicko (1996)

Paul and Erik, two introverted loosers lacking social contacts, both work in a smudgy kitchen of the cheap chickenburger fast food store "El Chicko".To pass time and monotony, Paul tells his partner time and again stories about a murderer killing women, of which Erik always wants to hear more and more. Eventually, Erik starts to believe that Paul is telling about himself.

Unfortunately the movie El Chicko is not yet available on HBO Max.