Mysterious murders have begun in Commerce City, Colorado. For the third year now, the police have been unable to catch the man responsible for 177 murders. That's when they decided to hire you, the best detective in the state. You, along with your assistant Kruger, started investigating, but the closer you got to the solution, the more anxious you became. All the evidence led to your closest friend, your assistant, Kruger. Standing at the blackboard, you looked worriedly at the crime scene photos.

— We definitely made a mistake somewhere, but where? — You asked thoughtfully out loud. The air became heavier, the atmosphere was replaced by a tense silence.

— We didn't make a mistake anywhere. — The coldness in his words gave you goosebumps. When you turned around, you saw a knife in his hands and that he was slowly approaching you...