'Bad Timing' is a great and criminally under-rated film from a director who at the time seems to have been at the peak of his powers. In Roeg's filmography, only 'Don't Look Now' comes close, but I would say that 'Bad Timing' is more direct, more challenging and more fascinating even than that fine film.
Other reviews and the amazon summary have probably provided the plot details - basically all that happens in the narrative is that Art Garfunkel's aloof Professor Alex Linden has a passionate, damaging affair with Theresa Russell's elusive and unpredictable Milena, and because of what happens between them, Harvey Kietel as a local Police Inspector is on Alex's trail. The film is however all about intermingling themes, obsessions and preoccupations - trust, love, hate, truth and co-incidences, and how much we really understand about the world around us. Images, performances and editing all emphasise those themes, and the effects on the viewer are unlike any other film.
I fully accept, and feel it should be emphasised, that some people will find it very hard to sit through this film. The general atmpsphere is heavy and doom laden and there are a few scenes of (even by today's standard's) shocking violence - but the unflinching approach to the material will leave other people hooked - as will one of the most beautiful opening scenes in film history, filmed in the Belvedere gallery in Vienna in the Klimt room, with Tom Waits on the soundtrack. The very last image is also (to this viewer) completely baffling - anyone with any ideas please comment on my review to share them!
The UK DVD release of this film is perfectly watchable but for more extras and a sharper picture the Region 1 Criterion is your best bet. I can't promise, if you are new to this film, that you will enjoy it but it would be hard not to appreciate its brilliance.