Mark of the Whip (2006)

When her car breaks down on a rugged country road deep in the dense woods, a menacing crowd of local farmers encircles the inexperienced driver. And in the dead of night, the group of perverts take pleasure in exacting a painful and humiliating punishment on her stark-naked, neatly tied, and brutally whipped body. As the inquisitive detective Carla Novak tries to shed light on the hideous crime, before long, she finds herself trapped in a dark world of masochistic experiences: the twisted realm of the mysterious punisher known as the Fantom Whipper. Now, robbed of hope or the will to resist, beautiful Carla has no choice but to embrace her newfound passion for intense pain and the sinful pleasures of the mighty bull-whip. But first, Carla must swear everlasting faith to her strict master. How deep is her addiction to the mark of the whip?