A moderately amusing thriller with a comic edge. The (little known) director often uses distorted camera angles to portray the hero's slow "degeneration into a state of madness" (that's how he describes his condition at one point) and the script is clever enough to keep you guessing and wondering whether Malcolm McDowell (in a great performance that gives class to the production) is simply having "vivid" hallucinations or is driven to insanity by someone else. There are some impressively shot scenes in this movie, but it is marred by an inconclusive ending, which doesn't fully resolve the plot. (**)
