This British dark comedy adapted from the play of the same name features a brother and sister who are involved with a charming young man with a mysterious past. IMDB: www.imdb.com/title/tt0065700/ Disclaimer: I do not own the rights to this film. The DVD is very rare and appears to be out of print. I was unable to find a digital version on popular streaming services, so I am sharing it here as educational material for gay cinema history. Enjoy!