Overview
Cube Zero is a 2004 Canadian science fiction psychological horror film written and directed by Ernie Barbarash, in his directorial debut. It is the third installment in the Cube series and a prequel to the first film.
The first two films take place almost entirely within the Cube maze, and Cube Zero is set in both its interior and exterior. It reverts to the industrial-designed, colored rooms of the first Cube, but with a refreshed and redesigned set.
Plot
Ryjkin is a man trying to escape from the Cube. Upon entering a trapped room, he is sprayed with a mysterious liquid that he fears is acid only to find it sweet tasting, thinking it is flavored water, desperately drinking it to quench his thirst. However he discovers to his horror it is a potent molecular base that melts his entire body after a few minutes, killing him.
The rooms in the Cube are being monitored from a remote observation room by two technicians, Eric Wynn and Dodd, who are unaware of who their employers are. The pair regularly play chess during work, whereupon Wynn demonstrates mental calculator abilities which he uses to predict Dodd's moves.
From Wikipedia (CC BY-SA 4.0).