Instruct: Classify a review as either positive or negative.
Query: The Title Says It All

On a basic level "Experiment in Terror" is a police procedural. The hunt for a stalker, blackmailer and murderer. Under Blake Edwards direction it becomes alot more. Filmed in black and white with a fondness for night scenes the film unsettles its audience by allowing them to use their imaginations. No gratuitous violence or blood splattered scenes. In its shadows where the horrors are barely glimpsed the audience has to use their imagination to conjure up their worst nightmares. That is often scarier than a graphic depiction. Ford and Remmick are excellent and Ross Martin turns in a performance that makes him the world champion haevy breather. Martin is noted for lighter roles but is superb here in his sinister turn. Henry Mancini's subtle but unsettling score is icing on the cake. Enjoy with the lights out.