The Testament of Dr. Mabuse (Das Testament des Dr. Mabuse)
In the summer of 1935, twins Niles and Holland Perry live on a Connecticut farm. Their grandmother, Ada, teaches a mysterious, seemingly harmless "game"—until a series of horrific accidents begin to occur. Niles believes Holland is responsible, but Ada is the one who realizes the terrible truth behind it all. Can he stop this deadly game before it's too late?