This is a psychological thriller about two detectives (Leonardo Di Caprio and Mark Ruffalo) that investigating a missing patient in a mental hospital in Shutter Island. This movie is very interesting because almost half of the movie, you'll be thinking that the staff in the hospital were bad people and they were actually been experimenting on the patient. But, there were some clues that pointing out that was not the case as Di Caprio kept having frequent delusions and signs of withdrawal syndrome syndrome such as headache, tremor, sweating and worsening of his delusion. The whole hospital had to 'roleplay' Di Caprio delusions in order to 'wake' him up and bring him back to reality and acceptance. If you love movies like Beautiful Mind and Fight Club and this is definitely a great movie to watch.Di Caprio played a veteran army who experienced psychological and emotion trauma after her wife who suffered manic depression killed their three children. He blamed himself for not taking appropriate medical treatment for his wife when she told him about her hallucinations. Because of such great trauma, he kept relapsing to his delusional world in order for him to escape from such painful reality. I think Di Caprio has matured so much in term of his acting skills. He's definitely a serious actor and looking from his latest movies such as Blood Diamond, Body of Lies and this one, I think he managed to prove himself more than just another hollywood pretty face.