Mihai Roman, the partner of the ex commissar Miclovan tries hard to see Miclovan's assassin, Semanca, portrayed by George Constantin, behind bars. Because the court didn't have enough evidence, Semanca is set free. In his desperate efforts to imprison Semanca, Mihai Roman receive another mission and another partner in the same time. The new partner, Oarca seems to be an ex servant who is good at everything, moreover he is one of the best at driving on serpentine.