The house in “The Affair” is based on the Villa Tugendhat, a UNESCO World Heritage site in Brno, Czech Republic. So many scenes are shot there that the place should have its own above-the-title credit. As in the film, it was built in the late 1920s for a husband and wife and, according to Wikipedia, “the villa soon became an icon of modernism.” It inspired The Glass Room, the novel on which this film is based. It would have made more sense to keep the name of the book, because I have no idea exactly what affair the title alludes to; there are many and none of them is as memorable as the architecture. Full disclosure forces me to tell you I had no idea about Villa Tugendhat nor its history while watching director Julius Sevcík’s decades-spanning drama. I can also tell you my research afterwards changed nothing in this review, though it does explain why the film feels stalked by this building.