Summer, 1954.

U.S. Marshal Teddy Daniels has come to Shutter Island, home of Ashecliffe Hospital for the Criminally Insane. Along with his partner, Chuck Aule, he sets out to find an escaped patient.

But nothing at Ashecliffe Hospital is what it seems.And neither is Teddy Daniels.

Is he there to find a missing patient? Or has he been sent to look into rumors of Ashecliffe's radical approach to psychiatry? An approach that may include drug experimentation, hideous surgical trials, and lethal countermoves in the shadow war against Soviet brainwashing ...

The closer Teddy and Chuck get to the truth, the more elusive it becomes, and the more they begin to believe that they may never leave Shutter Island.

Because someone is trying to drive them insane ...