Set in Baroque France, a scheming widow and her lover make a bet regarding the corruption of a recently married woman. The lover, Valmont, bets that he can seduce her, even though she is an honorable woman. If he wins, he can have his lover to do as he will. However, in the process of seducing the married woman, Valmont falls in love.
The film starts in the 13th arrondissement of Paris in 1984. Robert Pinot is a police officer as ordinary as clumsy. One day, he stops a certain Josyane, a young drug addict who is also doubled as a pickpocket, nicknamed Marylou. Having discovered that she comes from the same village, Nanteuil, then him, he takes compassion for the young girl and decides to take her under his wing to keep her away from Tony, a dangerous dealer with whom she is in love.
Barbara marries Julien a charming and sexy man. Barbara's old flame Paul is highly suspicious of Julien. It seems Julien's previous two wives died under dubious circumstances and he collected a wad of insurance money as a result. Paul cannot ignore his misgivings, and so he follows Barbara and Julien to Morocco on their honeymoon, intent on preventing any harm to the woman he still loves.
