At $3.99, this strikes me as low-priced, but I have no idea how long it's been there or will last.
Given the Harvey Weinstein revelations and others up to someone who shall be nameless, Dan Davies's bio of Jimmy Savile seems relevant on this side of the pond also. Reading an account of how the Jack the Ripper murders were covered up by the establishment, I went looking for the prize-winning Davies book for a tale of how much things have not changed in the last century and was pleasantly surprised to see that it's currently cheap.
In Plain Sight: The Life and Lies of Jimmy Savile at Kindle; same price at Kobo.