Pegasus is another Open Road imprint.
More suggestions for mysteries:
Cornell Woolrich
Brian Garfield - spy thrillers - movie Death Wish based on his book.
Charlotte Armstrong
Ruth Rendell (Some of these are Random House)
Ruth Rendell
Horror
Ira Levin - Son of Rosemary
William Hgortsberg -
Falling Angel, on which the movie was based.
MysteriousPress Authors from their website.
Pegasus Authors