Jeff (1969)
Directed by Jean Herman

Film Synopsis

After successfully pulling off a jewel heist that will make them all rich, five hardened gangsters meet up at an agreed location whilst their leader, Jeff, heads off to Antwerp to find a buyer for their ill-gotten gains.  When Jeff fails to return as planned the crooks become suspicious and all but one - Laurent, his loyal right-hand man - are soon convinced that they have been betrayed.  One of the dissenters, Diamant, tackles Eva, Jeff's mistress, in a bid to extort the truth from her and reveal the gangster's present whereabouts.

After disposing of two of his criminal associates, Laurent goes over to Antwerp with Eva, making her his mistress as he sets about looking for his missing partner in crime.  The sole survivor of a bloody ambush orchestrated by Jeff, Diamant returns to Eva with the news that she, along with the rest of the gang, has been duped by both Jeff and Laurent.  Right from the beginning, the latter two had planned to run off with the jewels and share the booty between themselves.  But now Laurent's objectives have changed.  Realising he is in love with Eva, he knows he must kill Jeff when they next meet...