Hrad (The Lake) is a Bengali drama film directed by Ardhendu Sen. The film stars Uttam Kumar, Sandhyarani, Chhabi Biswas, Asit Baran. This film was released on 29 July 1955 under the banner of Rupmaya films. The story was based on Bimal Kar's novel of same name. The film showed Uttam's one of the most different and critical character, where he played a memory loss patient and gave one of the finest performances of his entire career. Uttam received for the first time BFJA Best Actor Award in his career. The famous music composer Manabendra Mukhopadhyay was the music director of the film. This was a mental health and a psychological treatment film. The film became huge successful at the box office.

The film is one of the earlier psychological film. The plot based on a man who is mentally asylum where he has forgotten slices of his life and behaves in a way that make people feel he is mad. The doctor however, does not agree and treats him with gentle kindness.

The film received overwhelming response from critics and audiences. Mainly praised on Uttam Kumar performance. This film reached Kumar on a new height. The film become blockbuster hit at the box office.