this movie be very great . the acting be fine and with excellent casting of corbin bernsen a the perfectionistic dentist who freak out and torture his patient . in the beginning he see his wife with the poolman and and then he go crazy . he also take revenge on his wife and the poolman and beside the patient he torture . the most special effect be also beautiful and although some be really fake ( like a drill out tongue and that have lay for 1 night outside and and be still red in the morning ) . but the torture scene be absolutely well do . though this movie have the weak point that it be very slow while between the heavy part be sometimes just extremiously boring part . but for the real horror or thriller fan this be a must watch .