Kamijo Ren is the director of the Tokyo Metropolitan Police Department’s Criminal Investigation Liaison Division. His father is a former police officer. An incident in Ren’s childhood triggered his thirst for power and he has his sights set on heading the police force by becoming its Superintendent General someday. Ren believes topping the faction that he belongs to is the shortcut to fulfilling his aspiration. He is driven by ambition and has no qualms carrying out work, no matter how dirty it is. His childhood friend Mizuki Sawa, a senior detective in the First Investigation Division, often opposes his stance and mindset as a detective but is the only one who knows about his past.

该剧原案的书籍，是将心理学权威——阿尔弗雷德·阿德勒的“如果拥有不怕被他人所讨厌的勇气的话，就能够从烦恼中解放出来”这样的理论，以对话形式而展开浅显易懂的解说的作品《被讨厌的勇气》。 此次，该剧将原著改编成刑警剧，以由香里奈饰演的单干刑警·兰子等人来展现“个人心理学”的形式，来介绍“个人心理学”的理论。与兰子组成搭档、身为“不想被讨厌的男人”的后辈刑警·青山由加藤饰演，协助搜查的心理学教授、作为“什么事都知道的男人”而登场的大文字由椎名饰演。