Marie and Wim are a childless Dutch couple living peacefully in their suburban home when World War II breaks out. Reluctantly, they accept Nico, a Jewish man in his mid-50s, into their home as a clandestine refugee. In lean, translucent prose, Hans Keilson explores the internal, quotidian world of Wim and Marie as they continue with life-as- usual under extraordinary circumstances. However, Keilson, who died earlier this summer at the age of 101, exerts himself as a master of the modern novel when he takes an average story of lives troubled and lost during the Holocaust and infuses it with dark humor and macabre irony. After Nico dies of natural causes while in hiding, the Dutch couple is left with a dilemma: how to dispose of the body? When circumstances force Marie and Wim to flee their own home, Comedy In A Minor Key (Farrar, Straus and Giroux, $13) explodes into a subito piano.