The plot is highly clever, and the direction, while not up to the usual M:I first season standards, rolls right along. (Note the oddly-edited moment in which the bad guy is choke-held by Rollin. Even slowed down, it seems highly disjointed.) The swiftness of the direction atones for the general lack of slickness (awkward angles, weirdly timed dialogue exchanges, especially in the apartment scene, almost to comical effect), and Francis Lederer is one of the scariest monsters to pop up in the series--I think it's the sadistic glee with which he carries out his cruel duties. To describe him as a man with no trace of a conscience is to do his character a kindness. But the improbabilities are too noticeably improbable, which is to say that our usual suspension of disbelief isn't enough. How does a latex mask afford someone (guess who?) the ability to take on the stature.and body type of another? And how many items can be crammed into a small container? Sorry to note that the nightclub music almost got on my last nerve--I have nothing against experimental sounds, but when they sound like the death rattle of some huge animal... I think that Lederer's brilliant performance, plus the surefire suspense of the rescue operation, make this one so memorable. Sloppily done but compelling.