Obsession (1949 film)

Obsession, released in the US as The Hidden Room, is a 1949 British crime film directed by Edward Dmytryk, based on the book A Man About A Dog by Alec Coppel, who also wrote the screenplay for the film, and turned the story into a novel. Obsession was entered into the 1949 Cannes Film Festival.

Alec Coppel originally wrote the story as a play when living in Sydney during World War Two. He adapted the work into a novel while travelling to London. Both play and novel were called A Man About a Dog. Although in the US the novel would be known as Over the Line.Film rights were bought by British producer Noel Madison. He also bought the rights to two other thrillers, Four Hours to Kill by Norman Krasna and The Last Mile by John Wexley. ........

Source: Wikipedia