"Biedermann" refers to the main character in the play "Biedermann und die Brandstifter" by Swiss playwright Max Frisch. The play, written in 1953, explores themes of guilt, responsibility, and the dangers of complacency in the face of evil. Biedermann is a well-meaning but naive businessman who fails to recognize the threat posed by two arsonists who take refuge in his home. The story unfolds as Biedermann's attempts to be hospitable lead him to ignore obvious warning signs. His character represents the broader societal tendency to overlook or rationalize dangerous behavior, ultimately highlighting the consequences of inaction and moral blindness in the face of wrongdoing.