Ray, a construction worker trapped in an unhappy marriage, pursues an affair with his neighbor, Carla. Carla's husband, Greg, is a mobster who keeps large sums of drug money in their home. With this in mind, Carla comes up with a plan: She and Ray will steal Greg's money, burn down her house, convince Greg the money was lost in the fire and then run away together. Carla's scheme, however, doesn't go off as planned.

The Square may not quite live up to the modern noir classics that inspired it, but with twists and tension to spare, it comes admirably close.