Relatives of a recently deceased man meet at his eerie castle for a reading of the will. They encounter a sinister piano player who turns out to be a toy maker, and his toys are imbued with murderous intentions.
One of four low-budget Mexican horror productions to star an ailing Boris Karloff in a supporting (but top-billed) role, this odd little number features the horror legend as the dying forebear of an eccentric family, whose heirs descend like vultures on his palatial home when they learn of his impending demise... which apparently occurs shortly after their arrival. Little do they realize that their plucky patriarch has laid some elaborate traps for them, employing his collection of life-size automatons. The cast wanders about through dimly-lit sets for what seems like an eternity before being slain by the wind-up robots in a variety of gory ways, but the violent, bloody climax comes far too late to rescue viewers from the endless drudgery.