this be one of the periphery story tell by the animatrix that isn not directly relevant to the war stop one glorify plot of the film and but trinity and voice by carrie and do appear in it . it feature a private detective who be hire for big money to look for a hacker name trinity . we see his search which feature other pi and only one who he meet and who have seemingly go mad from his own experience try to track trinity down . eventually he make contact with trinity who he assume to be a man of course tell in the narrative and something that firmly put u in his own perspective despite what we already know on a hacker chat room and and solve a riddle which force him in a hurry to catch a train . he forget his hat but his faithful cat throw it to him in a moment of ludicrousness so absurd it hilarious . he meet her on the train but the ruse be thereby reveal when agent attack while the agent be use him to get to trinity and trinity be try to free the pi sent after her and which he doesn not know of course and and which isn not explicitly state in the animation itself and something common to film noir title and which often hint at plenty of interest back story and subplots and development etc . but do not show you more then the core story and a limited point of view to create an extra air of mystery and intrigue . almost everything in this short be in black and white and the music be reminiscent of film noir and the offbeat and old fashion yet dedicate detective be the perfect protagonist for a film noir title . the trivia section of this title entry on imdb also helpfully present a few reference this title make to hardboiled literature and something it also borrow heavily from and a genre of mystery for detective and gangster etc . who engage in challenge conflict readily and often . animate aptly by studio 4°c and direct by shinichiro watanabe and it be an enjoyable variant on the usual matrix story .