From The Perry Mason TV Show Book
Does pornography cause violence? Even Perry has a hard time with that one in this cheesecake-leads-to-murder episode.

James Coburn stars as Donald Fletcher, a vulturish moneyman who, after buying into a respected but financially troubled publishing house, has turned it upside down by changing its conservative publications into scandal sheets featuring pictures of nude women.

Edmond Aitken, whose family once controlled the publishing house, contacts Perry, only to learn that there isn't any legal basis to oust Fletcher. No problem. Someone does the family a favor and murders the yellow journalist/flesh peddler. Trouble is, the prime suspect is Edmond’s wife Alyce, whom Fletcher had been blackmailing with “calendar photos” Alyce made in a moment of weakness.