In 2004, Lars Nilsson created his masterpiece, the video In Orgia, which blithely leafs through shades of human experience—banality, fun, dread, passion, violence—somehow sparking a nostalgia for life that makes you feel lucky to be along for the ride. Then, except for one installation at Schloss Agathenburg in Germany the next year, the artist took an unprecedented six-year hiatus. Nilsson’s long break has ended with this new exhibition, “Ruins,” which, unlike In Orgia, is laser-cut around an endgame of dangerous emotions but has an irresistible moral icing. It’s no masterpiece, yet with an