So my first reaction on finishing Slow River: "What? That's it?!?"

There were a few things that prompted that reaction. First, I didn't feel like Griffith really pulled off the conspiracy with Greta very well. There was only the mention that she "had to have secret power" there at the end, and that she had been perverted by Katerine to explain any of her conniving and plotting. The secret conspirator at the plant was not very interesting, basically since we never really met him or knew anything about him.