Khilona (1970)

Thakur Suraj Singh lives a wealthy lifestyle with his wife; three sons - Kishore, his wife Laxmi & two children Pappu and Laali; Vijaykamal, & Mohan; and an unmarried daughter, Radha. Kishore looks after the family business, while Vijaykamal is a renowned poet, and Mohan is studying law in the city. Vijaykamal is in love with lovely Sapna, but she is forced to marry Bihari, and kills herself on the night of the marriage. Vijaykamal witnesses her death and loses his mind. The family decide to keep him under lock and key on the terrace of their house. Unable to admit Vijaykamal to a mental asylum, Suraj brings home a young courtesan, Chand, who he hopes will cure Vijaykamal, and she does succeed considerably, but is traumatized, sexually assaulted by Vijaykamal, and abused by the rest of the family.

Unfortunately the movie Khilona is not yet available on HBO Max.