Watch Killing Time
Robert Bryant is a corrupt police detective whose previous partner was killed by a mobster. When that mobster manages to get himself acquitted of the charges Bryant decides that he won't stand for that and he hires a highly paid professional hit woman from Italy. In fact she is so highly paid that he discovers he absolutely cannot afford to pay her once the job is done. Instead, he hires a second assassin to take care of the her for him. Like that's not enough, his new partner seems to be catching on to Bryant's crooked ways.