Kala Pani (1958 film)

Kalapani is a 1958 Hindi movie produced by Dev Anand for Navketan Films and directed by Raj Khosla. The film is based on A.J. Cronins 1953 novel, Beyond This Place, and is a remake of the 1955 Bengali film Sabar Upaarey. The film stars Dev Anand, Madhubala, Nalini Jaywant, Bir Sakuja and Agha. The films music is by Sachin Dev Burman, and the lyrics are by Majrooh Sultanpuri.

Karan comes to know that his father, Shankarlal is in jail. And that his mother has been pretending from his childhood that his father has died. On meeting his father, Karan comes to know that he has been jailed for a murder that he did not commit. Karan sets out to gather proof of his fathers innocence so that he can reopen the case filed against him, and set him free.Karan comes to meet one of the witnesses who had spoken for his father in the court, who tells him about the investigating officer, Inspector Mehta. ........

Source: Wikipedia