Maigret Sets A Trap (2016)

Maigret is under heavy pressure from his superiors and the press because he has failed to catch a serial killer of women with no common feature, except their hair. Maigret sets a trap using undercover police women. The trap yields a clue to a suspect with a wife and mother, both very possessive, just as the decision to replace him as lead investigator brings the pressure to a boiling point.