I'll have to read Rinehart's The Circular Staircase, as I know many liked her mysteries. However, the only one I've read, The Yellow Room, was so bad, I trashed it.
I recently watched the Hitchcock film Strangers on a Train, one of my favorities, with Robert Walker and Farley Granger. It also has Hitchcock's daughter, Patricia in a small, but good role. Another of my favorite Hitchcock films is Rope, also with Farley Granger.
Marj