For over a decade I have taken pride in the fact that I can predict the ending of thrillers and crime novels (shows/movies) and then there's Gyllenhaal bench pressing my mind into a naive little kid... This show and specially the ending, successfully clouds the duality of personalities until the big reveal and showcases how perspectives can be deceiving. Absolutely worth watching if you want to know how you can keep the plot secretive and yet make the storyline gripping. Great work! Hope to see Gyllenhaal in more such shows... Also a very worthy mention Ruth Negga. If you don't know her work, watch The preacher. She's awesome👍.