While in 2019, 150 women were killed by their spouse or their ex-companion in France, the journalists of Le Monde created an investigation unit within their editorial staff to decipher these feminicides. With methodology, they highlighted a recurrent criminal pattern and characterized the signals that led to the murders of these women. Through the testimonies of the entourage of the victims and the institutions, this film analyzes five emblematic cases of feminicides and traces the evolution of the romantic relationship from the meeting to the murder. This documentary warns of the collective blindness of society in the hope of causing global awareness.