In the heart of Paris, in the year 1900, lives Georges Landru, a charismatic and cunning man who presents himself to society as a wealthy gentleman. However, behind that seductive façade lies a dark secret: he is a serial killer who targets solitary women, ensnaring them in a deadly trap. Using his charm and the promise of a life of luxury, Landru enchants his victims, whether they are widows in search of love or women desperate to escape anonymity.
As his encounters turn into disappearances, the police begin to suspect this enigmatic figure. The story focuses on his complicated relationship with the authorities and his ability to evade justice, even as a thread of suspense weaves around his character. The film depicts a fascinating portrait of Landru's duality: he is both the predator and the prey, illustrating how the dark side of humanity can equally allure and repel.
Tensions escalate as investigations intensify and bodies begin to surface, while the media and public opinion become obsessed with the "woman hunter." Through this narrative, not only is the mind of the criminal explored, but also the devastation he leaves in the lives of those around him. The tense atmosphere keeps the viewer on the edge of their seat, wondering if Landru will be able to escape his final fate.