This would make a good double-feature with Dead Ringers, another 1980’s movie about twin doctors who fall for the same woman. In this one, Oliver and Oswald (twins, separated conjoined, I think Oliver is the blond one) are played by Eric and Brian Oswald (brothers, not twins) – zoologists studying animal behavior when their wives are killed in a car accident while being driven by Alba (Andréa Ferréol of La grande bouffe, The Last Metro, Street of No Return). They become increasingly obsessed with Alba, with each other, and with chaos and decay, freeing zoo animals and shooting time-lapse films of ever-larger dead ones.
These three are surrounded by some suspicious characters: a woman called Venus (Frances Barber of Secret Friends) and a mad surgeon named Van Meegeren, who amputated Alba’s leg after the car crash and now wants to amputate the other leg. She finally turns down the twins in favor of a new man who is also missing his legs – I think she dies at the end but not sure exactly why, and the brothers stage a suicide before the time-lapse camera to add their own decaying images to the collection.
It sounds like a bunch of weirdness from a plot description, but in practice it’s much weirder. Obsessed with Vermeer, decay, snails, symmetry, doubles, the alphabet, fakes and missing limbs – with the great pulsing Nyman music, and always more than one thing happening per shot, each splendidly composed frame full of motion.