David Fox's life is like an endless roller coaster - he works as a detective in the Delight City Police Department, enjoys authority among his police colleagues, leads a carefree lifestyle, and has a good time with girls. He is the best detective in the city and has managed to solve many seemingly hopeless cases during his career. But everything changes when a ruthless serial killer appears in the city, for whose crimes Fox will be blamed. Whether he can catch the killer and clear his reputation depends entirely on you.