This paper presents a comparative study of three Mexican dramas: Los ilegales (1979) by Víctor Hugo Rascón Banda, El viaje de los cantores (1988) by Hugo Salcedo, and Oc ye nechca (érase una vez) (2008) by Jaime Chabaud. These plays share the theme of Mexican citizens’ immigration to the USA. The ways in which parts of a dramatic play such as character, time and setting are constructed, will be examined to decipher how the authors’ focus on the most alarming feature of the Mexican reality, namely mass migration. The reasons behind the mass emigration from Mexico to the USA are both economy and people’s lack of sense of security. As this study delineates, the mass emigration depicted in the presented dramas is characterized as illegal and inhumane. The analysis of the three dramas demonstrates that their dramatic structures convey a definite ideological message.