Published in April 2000, this French paperback explores the dynamics of violence, the moments that lead individuals to act, and the circumstances that precipitate rupture. Drawing on case studies and theoretical perspectives, the author examines how personal, social, and situational factors intersect to produce violent behavior. The text offers a nuanced analysis of the thresholds between thought and action, providing readers with insights into prevention and intervention strategies. Though concise, the work serves as a valuable resource for scholars, practitioners, and anyone interested in understanding the mechanisms behind violent episodes and the pathways toward resolution.