Le Corps de mon ennemi (also known as Body of My Enemy [2]) is a 1976 French crime film directed by Henri Verneuil.
Through the budding relationship with her in-laws, Leclercq is able to assimilate into the local upper class of his hometown, Cornai.
The oblivious parvenu Leclercq eventually discovers that "Number One" is actually a cover-up for Raphaël Di Massa's illegal drug trade.
Following a dispute between Di Massa and Leclercq, the gun of the latter is stolen and used in the murder of a local football star.
Seven years later, he returns to Cornai and discovers that it wasn't Di Massa, but Gilberte's father Jean-Baptiste Beaumont-Liégard who ran the drug operation during Leclercq's employment.