Stan the Killer by Georges Simenon

Inspector Maigret is called to investigate a series of brutal murders linked to a quiet man named Stan, who may not be what he seems. As Maigret unravels the suspect’s past and his unsettling charm, he finds himself in a psychological duel. The plot unfolds through tense interviews and subtle observation, slowly revealing the truth beneath the surface. A chilling story of manipulation and concealed violence. A gritty psychological portrait of a killer hiding in plain sight.