The perverted old quack flips his wig
Now a spurt from your back he would swig
But before this ordeal
He gets floored by Emil
And his vertebra crack like a twig.
Emil Van Horn is the man in the ape suit, hench-monkey to Béla Lugosi, The Ape Man (William Beaudine; 1943). Attempting to reverse his condition, Lugosi injects the spinal fluid from his murder victims. Makes sense to me. Title by Donald "B for Brokeback" Benson.