Fantom Kiler 4 (2008)

After the castrated body of a man is found pinned to a tree, Det Sylvia Kovak realises that she is dealing with no ordinary killer. As, one by one, her friends suffer terrible and perverted deaths, the pretty detective suspects that the mysterious Fantom is playing games with her. With no help from her colleagues, Sylvia decides to solve the case by herself, using her intelligence, her intuition and even her own body if need be. Unfortunately, she doesn't realize that she is walking right into his trap.