Big Sleep, The (1946) - Such A Lot Of Guns

From his stake-out Marlowe (Humphrey Bogart) spies Vivian (Lauren Bacall) and follows her into the apartment where shiftless Joe (Louis Jean Heydt) and Agnes (Sonia Darrin) are up to not-yet-revealed tricks, in Howard Hawks' version of Raymond Chandler's The Big Sleep, 1946.