Bees Saal Baad (transl. Twenty Years Later) is a 1962 Indian Hindi-language psychological thriller film. It was directed by Biren Nag and produced by Hemant Kumar, who also composed the music and sang some of the songs. The film marks the directorial debut of Biren Nag, and stars Biswajeet, Waheeda Rehman, Madan Puri, Sajjan and Asit Sen.
 The film is a loose adaptation of the Bengali hit thriller Jighansa (1951), which was based on Sir Arthur Conan Doyle's The Hound of the Baskervilles as well as loosely based on Hemendra Kumar Roy's novel Nishithini Bivishika.  The film topped the box office chart in 1962, becoming a "super hit." The film became very popular for the song "Kahin Deep Jale", sung by Lata Mangeshkar and written by Shakeel Badayuni for which they won Filmfare Award for Best Female Playback Singer and Filmfare Award for Best Lyricist respectively.
 After a lustful Thakur in the village of Chandanghat rapes a young girl, she kills herself. Thereafter, the Thakur is killed by what the local people call the girl's vengeful spirit. Then the Thakur's son is also reportedly killed by the same spirit. Twenty years after the Thakur's death, his grandson Kumar comes to the village and is warned by the locals that the spirit will kill him as well, but he does not believe them. He hears the singing voice of the supposed spirit the first night from the swamp. The next day as he wakes up, he finds out about Radha, a carefree girl, who is the niece of an old man, Ramlal.
 The singing continues the second night, but Kumar is unable to find the identity of the girl singing the song. He notices that there is a source of light in his house on the terrace. The next day, Kumar finds that his coat is lost. The news reaches Radha that Kumar has been killed. Radha does not believe this and runs into the forest, where Kumar comes in front of her. He says it was not he that was killed, but another man wearing his suit. He was killed in the swamp under the same tree where his father and grandfather were killed.
 Later that night, Kumar sees Laxman, his servant arguing with a girl. Upon enquiring, Laxman explains that the man who was killed under the tree was none other than his sister's husband. Laxman used to give a signal from the roof (terrace) of the house occasionally to his fugitive brother-in-law, using the light from his lantern, after which that man would come to the house for supplies. Since the fugitive needed a coat, Laxman has stolen Kumar's coat and given it to him. Obviously, the "spirit" had chanced upon the fugitive in the forest, mistaken him for Kumar, and killed him. Radha strongly urges Kumar to leave the village and go back to town, since a person wearing his coat was killed by the spirit. Kumar refuses to leave.
 Ramlal forbids his niece Radha to meet Kumar, since tongues in the village have begun to wag. Also, says Ramlal, Kumar is the grandson of a rapist and two generations of his family have met violent deaths; Kumar himself has been marked out by the spirit. Why get involved with him? Radha is deeply saddened after this conversation with her uncle. Seeing Radha so downcast, Ramlal tells her to call Kumar near the swamp where they will talk, and he will convince Kumar to leave the village. Kumar goes to the swamp, and the spirit tries to kill him, but he escapes. Radha finds out that the one who was pretending to be the spirit of the girl was none other than her uncle Ramlal. It was Ramlal's daughter who had been raped by Thakur, so he killed Thakur and Thakur's son and was trying to kill Thakur's grandson now. Police arrive and persuade Ramlal to surrender himself. Kumar and Radha meet each other and have a happy ending.
 The music was composed by Hemant Kumar.