Sawblade circus

What would you do if you visited a circus in the middle of the forests? This ins't any other circus that has clowns and lions, this is a circus that has monsters, freaks, cannibals, even murders. A brother and his sister has to solve a murder case that led to the Circus, but as they search. They end up meeting the freaks in person, but they didn't know about their dark secret. Most of them were psychotic.