this be a taut suspenseful masterpiece from brian de palmawith amazing performance all around . it extremely suspenseful and and often scary and and the score be fantastic and plus all the character be awesome . yes it rip off psycho a lot and however it still a brilliantly make horror or thriller and with a fantastic opening and a shocking and unpredictable finale . this be unquestionably one of the best horror or thriller i have ever see and and the elevator scene be one of the most memorable scene ever and plus michael caine be simply amaze in this . the end be excellent and and the hospital scene near the end be absolutely terrifying and plus the end twist shock the hell out of me . it never fail to creep me out and and the stalk sequence be absolutely brilliant and plus nancy allen and keith gordon have fantastic chemistry together . this be a taut suspenseful masterpiece from brian de palma and with amazing performance all around . the direction be incredible . brian de palma do an incredible job here and with amazing camera work and incredible angle and fantastic use of color and awesome zoom in and zoom out great pov shot and keep the film at a very very fast pace . there be a bit of blood . we get bloody stabbings and knife and bloody gunshot wound and and 2 bloody slit throat . the acting be amaze . michael caine be amaze here and he be amaze in the acting department and creepy and be very likable and be mysterious and and really just do an amazing job overall i love him . ( caine rule . ) . angie dickinson give a memorable performance here and and be quite beautiful and and have good chemistry with caine . nancy allen be stunningly gorgeous . and and be fantastic here and she be extremely likable a the hooker and have excellent chemistry with keith gordon and and put on a tremendous show . keith gordon be very good a the kid and he have excellent chemistry with nancy allen and and be very likable . dennis franz be good a the detective . overall this be unquestionably one of the best horror film ever make and and i say drop what your do immediately and go see it . out of 5 .