1. A surveillance module ( 4 ) for a video surveillance system ( 1 ) that includes at least one surveillance camera ( 2 ) and a human-machine interface ( 5 ), the surveillance module ( 4 ) comprising a plurality of selectively activated surveillance components and configured to be data-coupled and/or is data-coupled to the at least one surveillance camera ( 2 ) and to the human-machine interface ( 5 ), wherein the at least one surveillance camera ( 2 ) is directed to a surveillance region, and the surveillance region can be displayed or is displayed as a surveillance scene that includes or can include moving foreground objects, wherein the human-machine interface enables users to mark regions as escape routes, wherein the surveillance module ( 4 ) analyzes the surveillance scene and outputs a signal on the basis of the analysis, and wherein the signal is output on the basis of the analysis of the scene background if deviations from predetermined base states that relate to an existence of interfering objects in escape routes occur.