This film is such a triumph.  In a world where people are being genetically altered as to be given the best possible start to their lives, Vincent (Ethan Hawke) is what is known as an "in-valid" someone who can't hold a prominent job in society unless they exist on what is known as "borrowed ladder" one of the social elite that has no use for their identity anymore.  In this movie, Vincent exists on a borrowed ladder to achieve his dream of getting into Gattaca and becoming an astraunaut, through Jerome and he appears to be doing very well until the director of missions is murdered. Vincent accidently leaves his "in-valid" DNA in the corridor and that leaves them to suspect that he killed the director.