The editors of BookPage look at so many books in a given day that it's impossible not to notice funny little trends—whether in jacket design or title choices.

Here's what stuck out today. Notice any similarities?

Out September 4 from Forge, you can buy Hank Phillippi Ryan's The Other Woman, the first in a new series. This breakneck first installment features a possible serial killer, a fallen-from-grace TV reporter, a Senate candidate facing a sex scandal—and much more.

The latest Joe O'Loughlin thriller from Michael Robotham is out from Mulholland Books on October 2. A husband and wife are murdered in their London home. Is the suspect just a troubled young man . . . or does he have something more to hide? The last O'Loughlin book was our Top Pick in Mystery in March 2012.

Japanese bestseller Keigo Higashino's latest book to hit U.S. shores, Salvation of a Saint, is on sale October 2 from Minotaur. Think murdered husband + a widow/suspect + a detective who has a thing for the woman. Higashino's The Devotion of Suspect X was filled with terrific suspense and a complete twist ending. We expect no less from Salvation!

These are all thrillers set in cosmopolitan locales—Boston, London and Tokyo, respectively—and, of course, they all involve murder. But I'm grouping 'em together because of the book jackets. What is it about a long-haired woman wearing a red trench coat and running/walking away?

Have you noticed any funny trends on your book jackets lately? Is red going to be the big color for fall? Let us know your thoughts in the comments.

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