Shutter Island Ending Explained: Did the Radical Therapy Cure Edward Daniels? 

Martin Scorsese’s psychological thriller Shutter Island (2010) is based on the 2003 novel of the same name by Dennis Lehane and adapted to screen by Laeta Kalogridis. It opens in 1954, with US Marshals Teddy Daniels (Leonardo DiCaprio) and Chuck Aule (Mark Ruffalo) arriving at Boston’s Shutter Island by ferry on a foggy day. The ...