This is a first printing of Dressed to Kill by Brian de Palma and Campbell Black, published in 1980 by Bantam Books.  It is a tie-in novel to the horror movie of the same name.

From the publisher:

She didn't mean to get picked up. But there she was, in a stranger's bed again. Her psychiatrist hadn't helped much this morning. She didn't mean to get murdered. But as the elevator door slid open, the last thing she saw was a tall blonde. And the flashing razor. Her psychiatrist had the killer's voice on tap. Her son has the killer's face on film. A call girl saw the killer at the scene. And the killer is still loose, watching them, waiting, just a razor slice away.

............................
Shipping combined for multiple purchases. Delivery confirmation included on all domestic packages.