Sin's Kill, Sin's Price.

In a Serial Murder case, 7 suspects are brought to a mansion to be under surveillance by a detective- whom is disguised and posing as their butler. Each suspect is analyzed and noted in their every move. 7 suspects- one culprit. The investigation takes unexpected turns as Lariat, the detective, pursues discovering our culprit. Will the case be solved, or will the serial murders forever remain a cold case?