I finished reading The Woman in the Window by Dan Mallory, under the nom de plume A.J. Finn. Then started looking up the author, and am dumbfounded by what I’m reading. He’s a pathological liar, manipulator of people for his own gain and his novel seems to be heavily borrowing from other similar plots. His lies and deceptions are well-documented, which he now tries to explain by proclaiming himself bipolar. There are numerous articles about this, including the one linked below from the New Yorker. https://www.newyorker.com/magazine/2019/02/11/a-suspense-novelists-trail-of-deceptions
I’m not sure if there are any illegal acts here, but I don’t know how one becomes rich and famous after doing what he’s done.