From the back:
Murder In The Worst Degree…!
A dead man… a killer on the loose… Dinny Powell wanted no part of them! His only desire was for lush little Libby — but the girl insisted on dipping her red-tipped fingers into million-dollar mayhem. So did Vince Keogh, who was murder on wheels… and Thorpe, the hot heir… and lovely Nancy, always ready to strip for action….
Who’s-got-the-million had become a dirty, greedy game! Still, Dinny figured he had it won. All he had to do was betray those who trusted him, and be — Rat For A Day!