The specificity of the cancer goes unmentioned, as do the location of the preserve and the source of his wealth. Seems like a poor place to put a state-of-the-art compound in a spare-no-expense situation to save a dying man. One of the many frustrations of Death of a Unicorn, written and directed by Alex Scharfman, is how shockingly literal it is. The billionaire on death’s door needs unicorn blood to live — that old chestnut — and he’ll do anything to live another day. ON SCREEN: Death of a Unicorn opens in theaters March 28.