As always, this film occurs in Paris, there happen a murders series. One the night of the killing a butcher is the suspect, detective Maigret(the great Jean Gavin) becomes involved into investigation and pulls off a cat and mouse game with the killer. Maigret leaving false clues and a false murderer. Meanwhile is developed a pursuit through the Paris slums, in order to chase the killer, getting a button. Appear new suspects, as a strange woman(Annie Girardot, one of the most known French actress of the 60s) and her spouse(Jean Desailly, recently deceased). Maigret is helped by his underlings(Lino Ventura, in very secondary role , among them). The obstinate inspector winds up pitting rival against each other in order to destroy him in a stirring interrogation.

The picture displays thriller,tension, twists plots and is quite entertaining , though some moments is slow moving. Interesting and exciting battle of wits between intelligent detective and quirky villain. The story explores the dynamics of pathological behaviour and very much in the style of psychoanalytic descriptions fitting fairly to George Simenon novels. Casting is frankly outstanding. Jean Gavin as stubborn detective is top-notch, Jean Desailly as maniac-depressive husband is magnificent, he's tremendously affected into the deeps of human desperation. Annie Girardot as a predatory and manipulating beauty woman and Lino Ventura who was one of the best French actors from the 60s and 70s. Awesome cinematography by Page who reflects splendidly the Paris streets, though mostly made in studios. The motion picture is rightly directed by Jean Delannoy. The film is based on George Simenon legendary detective who is adapted at several cinematic rendition and TV series. As Maigret was played by Basil Sidney( The lost life,TV, 59) Gino Cervi(Maigret in Pigalle,67),Rupert Davies(series from 60s),Richard Harris(TV, 1988),Michael Gambon(TV,1993),Sergio Castellitto(2004). But specially by Jean Gavin who also played 'Maigret and the St Fiacre case(59)'. In Hollywood(1949) was realized by Burguess Meredith 'The man on the Eiffel tower'with Charles Laughton as Maigret. Rating : Good and worth watch checking out. The movie will like to Jean Gabin fans and intrigue lovers but contains a highly suspenseful.

Alongside Molinaro's "La Mort de Belle", the best adaptation of a Simenon story for the big screen.

Helmer Delannoy proves a past master at creating a stifling atmosphere ( night scenes, a hot stormy weather, a heady melody pervading the story ),managing to make the tension rise and swell regularly until it explodes in a triple climax ( Maurice's interrogation, the confrontation of Maurice's wife and mother, the final attempt to murder Mauricette ). So, when the rain finally starts falling in the final seconds of the movie, it does as much good to bulky, weary Gabin as it does to the tense viewer.

Of course, the film benefits from a great interpretation : Jean Gabin gives life to his determined-shrewd-exhausted "commissaire" while Jean Desailly shines as the poor but dangerous Maurice whose boyhood has been prolonged by the misguided love of his mother ( Lucienne Bogaërt, perfect ). And Annie Girardot plays subtly and with welcome restraint the loving wife of a monster.

Sure, Misraki's music and song are haunting and the camera-work is sleek, but what actually makes this film a major work is that the authors( R.M.Arlaud, Delannoy and Audiard ) are true to the spirit of Simenon : disillusioned with human nature but sympathetic with those who are its victims, however monstrous they may appear to society.

Jean Delannoy stands as one of the best (if not simply the best)Simenon adapters.In the short space of two years he made two gems ,while the nouvelle vague was insulting him ,and these two gems should not be missed:"Maigret tend un piège" and "Maigret et l'affaire Saint-Fiacre" (1959),both absorbing,both featuring a top-notch cast,both packing a real wallop.The first one is an urban psychological thriller,the second one takes place in the country,in the castle of old aristocrats.

"Maigret tend un piège" is at first sight a serial killer story ,but Simenon is too subtle a writer to be content with that.And I'm sure that Jean Delannoy had seen Julien Duvivier's sensational film noir "voici le temps des assassins "(1956):not only he casts Jean Gabin as Maigret,Gabin who was the hero of Duvivier's movie,but he also uses Lucienne Bogaert ,who was his ex-wife in the same movie.Bogaert portrayed a drug addict abominable criminal in 1956;in Delannoy's film,she is an over possessive mother,proud of his son who could have been a sculptor,a painter,an artist,a genius,had they not thwarted his outstanding gifts.

SPOILERS SPOILERS SPOILERS This son is a very complex character masterfully played by Jean Desailly,who probably found his lifetime part here:he's so intense that he will leave you ill-at-ease.He cries,screams ,begs,almost never stops twitching,and his tragic strength is absolutely incredible."Be a man!!!" Gabin shouts ,whereas he's an impotent little boy ,under his mother's thumb.From the very beginning,-and what I write is not really a spoiler- we know he's the killer,Simenon did not write a whodunit,he's more interested in his poor man's psychology whom his mother and his wife -an excellent Annie Girardot- will try to save ,stopping at nothing for that.

The film begins slowly ,but when it hits its stride,after about thirty minutes ,it grabs you till the very end ,with more and more verbal violence.

No,Jean Delannoy is not the mediocre director the nouvelle vague used to despise.