Director Martin Scorsese and star Leonardo Di Caprio discuss the Gothic elements surrounding their psychological thriller, Shutter Island.br br It's 1954, and up-and-coming U.S. marshal Teddy Daniels is assigned to investigate the disappearance of a patient from Shutter Island's Ashecliffe Hospital. He'd been gunning for an assignment on the island for reasons of his own -- but before long he wonders whether he hasn't been brought there as part of a twisted plot by hospital doctors whose radical treatments range from unethical to illegal to downright sinister.