I first came across this film in Ankara, Turkey in the 1970's and have been looking for it since. It's a "heist" film on the surface, a cat burglar after jewels. But it's far more than this, with troubling, dark sexual overtones. It features the actual "deadfall" against the background of Aranjuez' guitar concerto, and the suspense is terrific, especially the acting, with Caine at his underplaying best, and Eric Portman stealing the show with a subtle, great performance. Why this film is not a cult classic I don't know, unless its dark side is too much for viewers. It's really unforgetable, as proven by its 25 year hold on my imagination.