Haunting Gothic psychodrama (adapted by Lewis John Carlino whose THE SAILOR WHO FELL FROM GRACE WITH THE SEA covers similarly torrid terrain) which, whilst undeniably owing a shade too much of a debt to PSYCHO (as previously noted by another IMDb commentator), whips up an unsettling and uneasy atmosphere of dread, not all of which is dissipated by apparently heavy censorship cuts made to secure a 'PG' for its original U.S. theatrical release in the early 70s. In fact, these often noticeable edits (scenes cut away before they've barely begun) lends the whole enterprise a greater sense of ambiguity by suggesting, rather than showing, the barely suppressed corruption and perversion. Possibly too low-key for popular tastes (which makes it all the more surprising that this was distributed by a major studio and roped in the likes of Robert Shaw) and, although I don't really go a bundle on films which seem to be bending over backwards to conceal their surprise ending (and, yes, I did see this one coming a mile off), this is still a one-off melodramatic curio worth seeking out and which certainly lingers in the mind. Now, how about a nice DVD transfer (my UK video copy is a nasty full-frame RCA Columbia release from the early 80s which doesn't do justice to what looks like impressive cinematography)?...