Director Henri-Georges Clouzot's maiden feature-length effort was the intricate mystery thriller The Murderer Lives at Number 21 (L'Assassin habite au 21). Businesslike homicide detective Wens (Pierre Fresnay) goes on the prowl for a methodical mass murderer, who seemingly manages to be everywhere at once. Following a confusing trail of clues to a seedy boarding house, Wens disguises himself as a clergyman in order to gain the confidence of the boarders, hoping that one of them will make "that fatal slip." All of the boarders are eventually taken into custody, only to be released when the murders continue unabated. Wens cracks the case when he figures out that the seemingly contradictory clues are the by-product of a bizarre conspiracy. Filmed in 1942 under wartime conditions, The Murderer Lives at Number 21 was finally released in the U.S. five years later. ~ Hal Erickson, Rovi

Using a specially designed transparent 'canvas' to provide an unobstructed view, Picasso creates as the camera rolls. He begins with simple works that take shape after only a single brush stroke. He then progresses to more complex paintings, in which he repeatedly adds and removes elements, transforming the entire scene at will, until at last the work is complete.

The cruel and abusive headmaster of a boarding school, Michel Delassalle, is murdered by an unlikely duo -- his meek wife and the mistress he brazenly flaunts. The women become increasingly unhinged by a series of odd occurrences after Delassalle's corpse mysteriously disappears.