The administration building for Shawshank State Prison.

Shawshank State Prison is a penitentiary in Maine.

In the film The Shawshank Redemption, it is filmed at the Mansfield State Reformatory in Ohio, which is a stand-in for the fictional prison.

In 2018, Shawshank State Prison is sold to a private concern, Northwest Correctional. The warden, Dale Lacy, retires. On his last day of work, however, he commits suicide. The new warden, T. Porter orders that Block F, a long-abandoned section of the prison, is to be reopened to accommodate more inmates. During the investigation into the block, officer Dennis Zalewski discovers a mysterious prisoner locked in a cage built into a water cistern. The discovery leads to the prison trying to cover up the fact that Warden Lacy kept a secret off-the-books prisoner in the facility. The prisoner does not speak except to say the name "Henry Matthew Deaver", leading to Henry's return to Castle Rock, Maine.