Deray began his directing career with the film The Gigolo (Gigolo, 1960). The critics highlight his film The Sinners (La piscine, 1968) as his best work. His other films include Borsalino (1969), Crime On a Summer Morning (Par un beau matin d’été, 1964), That Man George (L’homme de Marrakech, 1966), The Outside Man (Un homme est mort,1972), Flic story (1975), The Gang (Le gang, 1977).