Mihai Roman, the partner of ex-commissioner Miclovan, tries hard to put 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 receives another mission and another partner at 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 serpentines.