[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/LE_VIEUX_FUSIL_8365.jpg]]

''Le vieux fusil'' (known as ''The Old Gun'' a.k.a. ''Vengeance One by One'' in the US and ''The Last Straw'' in UK) is a 1975 French film directed by Robert Enrico, and starring Creator/PhilippeNoiret, Creator/RomySchneider and Jean Bouise.

During the German retreat from France in the summer of [[UsefulNotes/WorldWarII 1944]], Julien Dandieu is an ageing, embittered surgeon in the local hospital of Montauban. Frightened by the German army entering Montauban, Dandieu asks his friend Francois to drive his wife Clara and his daughter Florence to the remote village where he owns a chateau. One week later, Dandieu sets off to meet them for the weekend, but a Waffen SS squad has now occupied the village and killed its inhabitants. His daughter and wife, who was raped, were both killed by the cruel soldiers who shot his young daughter and immolated his wife with a flamethrower. Dandieu decides to kill as many Germans as possible to avenge his family. He takes an old gun he used as a child while hunting with his father and starts to ruthlessly kill them one by one.

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!!This film provides examples of:

* ActionSurvivor: Dandieu. He's not a soldier to begin with but he ends up wiping out a whole Waffen SS squad.
* ChekhovsGun: The flamethrower that the Germans left unattended.
* {{Flashback}}: Several flashbacks show [[HappyFlashback Dandieu's previous life with his wife]] over the course of the film. Some others feature her rape and killing.
* HoistByHisOwnPetard: [[spoiler: The last German soldier is incinerated with the flamethrower.]]
* KickTheDog: The rape and murder of Dandieu's wife is shown in all its horror, as well as the murder of his daughter.
* KillItWithFire: The SS roast Dandieu's wife with a flamethrower after raping her.
* TheLostLenore: Clara is this to Dandieu.
* MoodWhiplash: Mainly the contrast between Dandieu's {{Happy Flashback}}s and the SS squad's atrocities against his family, and with his own RoaringRampageOfRevenge.
* RapeAndRevenge: The SS squad raped and killed Dandieu's wife.
* RapeIsASpecialKindOfEvil: And it will be avenged accordingly.
* LaResistance: Dandieu is not an active resistant but he provides some help to the Resistance, hidden behind his respected surgeon status. The following tragic events turn him into a real one.
* RoaringRampageOfRevenge: Dandieu goes on a merciless rampage against the German soldiers after finding out that they raped and killed his wife and killed his daughter.
* ShotgunsAreJustBetter: Dandieu kills several German soldiers with his old hunting shotgun.
* TooHappyToLive: Dandieu, his wife and daughter are shown sharing happy moments in flashbacks. These couldn't last.
* UnstoppableRage: Dandieu's vengeful rage won't stop until all the German soldiers are dead.
* VeryLooselyBasedOnATrueStory: The film's story is very loosely inspired by the [[https://en.wikipedia.org/wiki/Oradour-sur-Glane_massacre massacre of Oradour-sur-Glane]]. Apart from being set in rural France and involving a Waffen SS regiment that massacred the population of a village, it has nothing in common with the event.
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