The Hands of Orlac (1924)

A celebrated pianist's life shatters when a tragic accident severs his hands, the very essence of his art. Desperate to restore him, his wife implores a surgeon to perform a radical procedure—transplanting new hands from a recently executed murderer. As he heals, the pianist senses a sinister force within these unfamiliar hands. Tormented by eerie impulses, he spirals into a nightmare, fearing he may become a killer.