Desc: Dört Hergele: Directed by Yilmaz Atadeniz, Giulio Giuseppe Negri. With Gordon Mitchell, Irfan Atasoy, Richard Harrison, Fikret Hakan. When Joseph Kevis, mafia boss of Istanbul, learned that his former colleagues wish to challenge his leadership, he just killed them and replace them with loyal people. Tony and Olga, one of the few survivors decide to take revenge Kevisu and his murderers.