An insane surgeon's obsession with an actress leads him to replace her wounded pianist husband's hands with the hands of a knife murderer--hands which still have the urge to throw knives.
A world-famous pianist loses both hands in an accident. When new hands are grafted on, he is horrified to learn they once belonged to a murderer.
A concert pianist loses his hands in a car crash, but a surgeon gives him new ones. The experimental medical procedure goes awry when the new hands drive the pianist mad.
