This amusingly grim Sundance stunner arrives on Shudder this week, and ruptures through the limits of fiction when it’s at its best.

Thomas Vinterberg’s “Another Round” opens with a scene that splits the difference between ethereal and anarchic, and over the following two hours this Danish drinking dramedy tasks us with determining what exactly that difference consists of. The primary tool in that endeavor? Shots. Lots and lots and lots of shots, along with some swigs of wine, beer and vodka for good measure.