The Beast With Five Fingers (1946) - Warner Archive Collection

On a dark night, in an isolated Italian villa, the last will and testament of a disabled former concert pianist is read. From another room comes the sound of a piano being played in the unmistakable style of the dead man--the start of a reign of terror by  The Beast with Five Fingers. Terrified, the heirs disinter the dead man and discover his long-paralyzed left hand has been severed and is missing. Now, one-by-one the people in the villa die, and the gruesome disembodied hand is not going to stop killing until it finds revenge for the pianist's murder in this terrifying horror classic.