La promesse (1996)

Igor and his father, Roger, are making a decent living renting apartments to illegal immigrants and sometimes working them illegally (among other scams). But when the building inspector pays a surprise visit and Amidou falls off a scaffold in his hurry to hide, things start to unravel, particularly when Igor makes a promise to the injured Amidou that ultimately exposes the different values of Igor and Roger, and of Amidou's wife, Assita.