This study investigates the impact of masculinity norms on the male and female characters in the novel En finir avec Eddy Bellegueule (2014) by Édouard Louis and seeks to understand how these norms affect their relations. The study is using the theories of Raewyn Connell and Simone de Beauvoir to answer the main research question. The findings show that the masculinity norms have an effect on men’s options regarding education and employment, and by extension, their quality of life because of their reluctance towards medicine. Moreover, the masculinity norms keep homosexual men in a subordinate position. The same norms affect women’s liberation and reduce their opportunities to work outside the household, the norms also affect their relations to other women. In conclusion, the findings show that the prevailing masculinity norms have a negative impact on life of both men and women in the book, and their relations. The findings also shows that the masculinity norms maintain women in a subordinate position.